Issue:
Bug: refactor(dynamic_fields): rename fields like ach, bacs and becs for bank debit payment method



## Type of Change
 - Refactoring
 
## Description
-  The fields ach, becs, and bacs in the payment method data (particularly in bank_debit) should be renamed to improve clarity.

## Changes to be made:
-  Rename ach to ach_bank_debit.
-  Rename becs to becs_bank_debit.
-  Rename bacs to bacs_bank_debit.

## Rationale
- These changes aim to make the field names more descriptive and self-explanatory, aligning with best practices for data clarity.

Pull request description:
## Type of Change
<!-- Put an `x` in the boxes that apply -->

- [ ] Bugfix
- [ ] New feature
- [ ] Enhancement
- [x] Refactoring
- [ ] Dependency updates
- [ ] Documentation
- [ ] CI/CD

## Description
ach, becs and bacs in payment method data is renamed to ach_bank_debit, becs_bank_debit, bacs_bank_debit


### Additional Changes

- [ ] This PR modifies the API contract
- [ ] This PR modifies the database schema
- [x] This PR modifies application configuration/environment variables

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1. `config`
2. `crates/router/src/configs`
3. `loadtest/config`
-->


## Motivation and Context
<!--
Why is this change required? What problem does it solve?
If it fixes an open issue, please link to the issue here.

If you don't have an issue, we'd recommend starting with one first so the PR
can focus on the implementation (unless it is an obvious bug or documentation fix
that will have little conversation).
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## How did you test it?
Tested it through Postman.

- Create Connector (Stripe):
```
{
    "connector_type": "payment_processor",
    "connector_name": "stripe",
    "business_country": "US",
    "business_label": "default",
    "connector_account_details": {
        "auth_type": "HeaderKey",
        "api_key": "some key here"
    },
    "test_mode": false,
    "disabled": false,
    "payment_methods_enabled": [
        {
            "payment_method": "pay_later",
            "payment_method_types": [
                {
                    "minimum_amount": 1,
                    "maximum_amount": 68607706,
                    "recurring_enabled": true,
                    "installment_payment_enabled": true,
                    "payment_experience": "redirect_to_url",
                    "payment_method_type": "affirm"
                }
            ]
        },
        {
            "payment_method": "pay_later",
            "payment_method_types": [
                {
                    "minimum_amount": 1,
                    "maximum_amount": 68607706,
                    "recurring_enabled": true,
                    "installment_payment_enabled": true,
                    "payment_experience": "redirect_to_url",
                    "payment_method_type": "afterpay_clearpay"
                }
            ]
        },
        {
            "payment_method": "pay_later",
            "payment_method_types": [
                {
                    "minimum_amount": 1,
                    "maximum_amount": 68607706,
                    "recurring_enabled": true,
                    "installment_payment_enabled": true,
                    "payment_experience": "redirect_to_url",
                    "payment_method_type": "klarna"
                }
            ]
        },
        {
            "payment_method": "pay_later",
            "payment_method_types": [
                {
                    "minimum_amount": 1,
                    "maximum_amount": 68607706,
                    "recurring_enabled": true,
                    "installment_payment_enabled": true,
                    "payment_experience": "invoke_sdk_client",
                    "payment_method_type": "klarna"
                }
            ]
        },
        {
            "payment_method": "bank_redirect",
            "payment_method_types": [
                {
                    "payment_method_type": "ideal",
                    "payment_experience": null,
                    "card_networks": null,
                    "accepted_currencies": null,
                    "accepted_countries": null,
                    "minimum_amount": 1,
                    "maximum_amount": 68607706,
                    "recurring_enabled": true,
                    "installment_payment_enabled": true
                },
                {
                    "payment_method_type": "giropay",
                    "payment_experience": null,
                    "card_networks": null,
                    "accepted_currencies": null,
                    "accepted_countries": null,
                    "minimum_amount": 1,
                    "maximum_amount": 68607706,
                    "recurring_enabled": true,
                    "installment_payment_enabled": true
                },
                {
                    "payment_method_type": "sofort",
                    "payment_experience": null,
                    "card_networks": null,
                    "accepted_currencies": null,
                    "accepted_countries": null,
                    "minimum_amount": 1,
                    "maximum_amount": 68607706,
                    "recurring_enabled": true,
                    "installment_payment_enabled": true
                },
                {
                    "payment_method_type": "eps",
                    "payment_experience": null,
                    "card_networks": null,
                    "accepted_currencies": null,
                    "accepted_countries": null,
                    "minimum_amount": 1,
                    "maximum_amount": 68607706,
                    "recurring_enabled": true,
                    "installment_payment_enabled": true
                }
            ]
        },
        {
            "payment_method": "bank_debit",
            "payment_method_types": [
                {
                    "payment_method_type": "ach",
                    "minimum_amount": 1,
                    "maximum_amount": 68607706,
                    "recurring_enabled": true,
                    "installment_payment_enabled": true
                },
                {
                    "payment_method_type": "becs",
                    "minimum_amount": 1,
                    "maximum_amount": 68607706,
                    "recurring_enabled": true,
                    "installment_payment_enabled": true
                },
                {
                    "payment_method_type": "bacs",
                    "minimum_amount": 1,
                    "maximum_amount": 68607706,
                    "recurring_enabled": true,
                    "installment_payment_enabled": true
                },
                {
                    "payment_method_type": "sepa",
                    "minimum_amount": 1,
                    "maximum_amount": 68607706,
                    "recurring_enabled": true,
                    "installment_payment_enabled": true
                }
            ]
        },
        {
            "payment_method": "bank_transfer",
            "payment_method_types": [
                {
                    "payment_method_type": "ach",
                    "minimum_amount": 1,
                    "maximum_amount": 68607706,
                    "recurring_enabled": true,
                    "installment_payment_enabled": true
                },
                {
                    "payment_method_type": "bacs",
                    "minimum_amount": 1,
                    "maximum_amount": 68607706,
                    "recurring_enabled": true,
                    "installment_payment_enabled": true
                },
                {
                    "payment_method_type": "sepa",
                    "minimum_amount": 1,
                    "maximum_amount": 68607706,
                    "recurring_enabled": true,
                    "installment_payment_enabled": true
                }
            ]
        },
        {
            "payment_method": "card",
            "payment_method_types": [
                {
                    "payment_method_type": "credit",
                    "minimum_amount": 1,
                    "maximum_amount": 68607706,
                    "recurring_enabled": true,
                    "installment_payment_enabled": true,
                    "card_networks": [
                        "AmericanExpress",
                        "Discover",
                        "Interac",
                        "JCB",
                        "Mastercard",
                        "Visa",
                        "DinersClub",
                        "UnionPay",
                        "RuPay"
                    ]
                }
            ]
        },
        {
            "payment_method": "card",
            "payment_method_types": [
                {
                    "payment_method_type": "debit",
                    "minimum_amount": 1,
                    "maximum_amount": 68607706,
                    "recurring_enabled": true,
                    "installment_payment_enabled": true,
                    "card_networks": [
                        "AmericanExpress",
                        "Discover",
                        "Interac",
                        "JCB",
                        "Mastercard",
                        "Visa",
                        "DinersClub",
                        "UnionPay",
                        "RuPay"
                    ]
                }
            ]
        },
        {
            "payment_method": "wallet",
            "payment_method_types": [
                {
                    "payment_method_type": "apple_pay",
                    "payment_experience": "invoke_sdk_client",
                    "minimum_amount": 1,
                    "maximum_amount": 68607706,
                    "recurring_enabled": true,
                    "installment_payment_enabled": true
                }
            ]
        },
        {
            "payment_method": "wallet",
            "payment_method_types": [
                {
                    "payment_method_type": "google_pay",
                    "payment_experience": "invoke_sdk_client",
                    "minimum_amount": 1,
                    "maximum_amount": 68607706,
                    "recurring_enabled": true,
                    "installment_payment_enabled": true
                },
                {
                    "payment_method_type": "we_chat_pay",
                    "payment_experience": "invoke_sdk_client",
                    "minimum_amount": 1,
                    "maximum_amount": 68607706,
                    "recurring_enabled": true,
                    "installment_payment_enabled": true
                }
            ]
        }
    ],
    "metadata": {
        "google_pay": {
            "allowed_payment_methods": [
                {
                    "type": "CARD",
                    "parameters": {
                        "allowed_auth_methods": [
                            "PAN_ONLY",
                            "CRYPTOGRAM_3DS"
                        ],
                        "allowed_card_networks": [
                            "AMEX",
                            "DISCOVER",
                            "INTERAC",
                            "JCB",
                            "MASTERCARD",
                            "VISA"
                        ]
                    },
                    "tokenization_specification": {
                        "type": "PAYMENT_GATEWAY",
                        "parameters": {
                            "gateway": "example",
                            "gateway_merchant_id": "{{gateway_merchant_id}}"
                        }
                    }
                }
            ],
            "merchant_info": {
                "merchant_name": "Narayan Bhat"
            }
        }
    }
}
```

- Create Payment (Confirm set to false):
```
{
  "amount": 100,
  "currency": "USD",
  "confirm": false,
  "capture_method": "automatic",
  "capture_on": "2022-09-10T10:11:12Z",
  "amount_to_capture": 100,
  "customer_id": "StripeCustomer",
  "email": "guest@example.com",
  "name": "John Doe",
  "phone": "999999999",
  "phone_country_code": "+1",
  "description": "Its my first payment request",
  "authentication_type": "no_three_ds",
  "return_url": "https://google.com",
  "payment_method": "bank_debit",
  "payment_method_type": "ach",
  "payment_method_data": {
    "bank_debit": {
      "ach_bank_debit":{
          "account_number" : "40308669",
          "routing_number" : "121000358",
          "sort_code" : "560036",
          "shopper_email" : "example@gmail.com",
          "card_holder_name": "joseph Doe",
          "bank_account_holder_name": "David Archer",
             "billing_details":{
                "houseNumberOrName":"50",
                "street":"Test Street",
                "city":"Amsterdam",
                "stateOrProvince":"NY",
                "postalCode":"12010",
                "country":"US",
                "name" : "A. Klaassen",
                "email" : "example@gmail.com"
            },
            "reference": "daslvcgbaieh"
      }
    }
  },
  "billing": {
    "address": {
      "line1": "1467",
      "line2": "Harrison Street",
      "line3": "Harrison Street",
      "city": "San Fransico",
      "state": "California",
      "zip": "94122",
      "country": "GB",
      "first_name": "joseph",
      "last_name": "Doe"
    },
    "phone": {
      "number": "8056594427",
      "country_code": "+91"
    }
  },
  "shipping": {
    "address": {
      "line1": "1467",
      "line2": "Harrison Street",
      "line3": "Harrison Street",
      "city": "San Fransico",
      "state": "California",
      "zip": "94122",
      "country": "GB",
      "first_name": "joseph",
      "last_name": "Doe"
    },
    "phone": {
      "number": "8056594427",
      "country_code": "+91"
    }
  },
  "statement_descriptor_name": "joseph",
  "statement_descriptor_suffix": "JS",
  "metadata": {
    "udf1": "value1",
    "new_customer": "true",
    "login_date": "2019-09-10T10:11:12Z"
  }
}
```

- Do a list calll to get the ach, becs and bacs details from dynamic fields:
```
curl --location 'http://localhost:8080/account/payment_methods?client_secret={{client_secret}}' \
--header 'Accept: application/json' \
--header 'api-key: {{publishable_key}}'
```

- The response should contain the following:
```
{
            "payment_method": "bank_debit",
            "payment_method_types": [
                {
                    "payment_method_type": "sepa",
                    "payment_experience": null,
                    "card_networks": null,
                    "bank_names": null,
                    "bank_debits": {
                        "eligible_connectors": [
                            "stripe"
                        ]
                    },
                    "bank_transfers": null,
                    "required_fields": {
                        "billing.email": {
                            "required_field": "payment_method_data.billing.email",
                            "display_name": "email",
                            "field_type": "user_email_address",
                            "value": "guest@example.com"
                        },
                        "billing.address.last_name": {
                            "required_field": "payment_method_data.billing.address.last_name",
                            "display_name": "owner_name",
                            "field_type": "user_billing_name",
                            "value": "Doe"
                        },
                        "payment_method_data.bank_debit.sepa_bank_debit.iban": {
                            "required_field": "payment_method_data.bank_debit.sepa_bank_debit.iban",
                            "display_name": "iban",
                            "field_type": "user_iban",
                            "value": null
                        },
                        "billing.address.first_name": {
                            "required_field": "payment_method_data.billing.address.first_name",
                            "display_name": "billing_first_name",
                            "field_type": "user_billing_name",
                            "value": "joseph"
                        }
                    },
                    "surcharge_details": null,
                    "pm_auth_connector": null
                },
                {
                    "payment_method_type": "becs",
                    "payment_experience": null,
                    "card_networks": null,
                    "bank_names": null,
                    "bank_debits": {
                        "eligible_connectors": [
                            "stripe"
                        ]
                    },
                    "bank_transfers": null,
                    "required_fields": {
                        "payment_method_data.bank_debit.becs_bank_debit.account_number": {
                            "required_field": "payment_method_data.bank_debit.becs_bank_debit.account_number",
                            "display_name": "bank_account_number",
                            "field_type": "user_bank_account_number",
                            "value": null
                        },
                        "payment_method_data.bank_debit.becs_bank_debit.bsb_number": {
                            "required_field": "payment_method_data.bank_debit.becs_bank_debit.bsb_number",
                            "display_name": "bsb_number",
                            "field_type": "text",
                            "value": null
                        },
                        "billing.email": {
                            "required_field": "payment_method_data.billing.email",
                            "display_name": "email",
                            "field_type": "user_email_address",
                            "value": "guest@example.com"
                        },
                        "billing.address.first_name": {
                            "required_field": "payment_method_data.billing.address.first_name",
                            "display_name": "billing_first_name",
                            "field_type": "user_billing_name",
                            "value": "joseph"
                        },
                        "billing.address.last_name": {
                            "required_field": "payment_method_data.billing.address.last_name",
                            "display_name": "owner_name",
                            "field_type": "user_billing_name",
                            "value": "Doe"
                        }
                    },
                    "surcharge_details": null,
                    "pm_auth_connector": null
                },
                {
                    "payment_method_type": "bacs",
                    "payment_experience": null,
                    "card_networks": null,
                    "bank_names": null,
                    "bank_debits": {
                        "eligible_connectors": [
                            "stripe"
                        ]
                    },
                    "bank_transfers": null,
                    "required_fields": {
                        "billing.address.line1": {
                            "required_field": "payment_method_data.billing.address.line1",
                            "display_name": "line1",
                            "field_type": "user_address_line1",
                            "value": "1467"
                        },
                        "billing.address.first_name": {
                            "required_field": "payment_method_data.billing.address.first_name",
                            "display_name": "billing_first_name",
                            "field_type": "user_billing_name",
                            "value": "joseph"
                        },
                        "billing.address.zip": {
                            "required_field": "payment_method_data.billing.address.zip",
                            "display_name": "zip",
                            "field_type": "user_address_pincode",
                            "value": "94122"
                        },
                        "payment_method_data.bank_debit.bacs_bank_debit.account_number": {
                            "required_field": "payment_method_data.bank_debit.bacs_bank_debit.account_number",
                            "display_name": "bank_account_number",
                            "field_type": "user_bank_account_number",
                            "value": null
                        },
                        "payment_method_data.bank_debit.bacs_bank_debit.sort_code": {
                            "required_field": "payment_method_data.bank_debit.bacs_bank_debit.sort_code",
                            "display_name": "bank_sort_code",
                            "field_type": "text",
                            "value": null
                        },
                        "billing.address.country": {
                            "required_field": "payment_method_data.billing.address.country",
                            "display_name": "country",
                            "field_type": {
                                "user_address_country": {
                                    "options": [
                                        "UK"
                                    ]
                                }
                            },
                            "value": "GB"
                        }
                    },
                    "surcharge_details": null,
                    "pm_auth_connector": null
                },
                {
                    "payment_method_type": "ach",
                    "payment_experience": null,
                    "card_networks": null,
                    "bank_names": null,
                    "bank_debits": {
                        "eligible_connectors": [
                            "stripe"
                        ]
                    },
                    "bank_transfers": null,
                    "required_fields": {
                        "billing.address.first_name": {
                            "required_field": "payment_method_data.billing.address.first_name",
                            "display_name": "billing_first_name",
                            "field_type": "user_billing_name",
                            "value": "joseph"
                        },
                        "billing.address.last_name": {
                            "required_field": "payment_method_data.billing.address.last_name",
                            "display_name": "owner_name",
                            "field_type": "user_billing_name",
                            "value": "Doe"
                        },
                        "payment_method_data.bank_debit.ach_bank_debit.account_number": {
                            "required_field": "payment_method_data.bank_debit.ach_bank_debit.account_number",
                            "display_name": "bank_account_number",
                            "field_type": "user_bank_account_number",
                            "value": null
                        },
                        "payment_method_data.bank_debit.ach_bank_debit.routing_number": {
                            "required_field": "payment_method_data.bank_debit.ach_bank_debit.routing_number",
                            "display_name": "bank_routing_number",
                            "field_type": "text",
                            "value": null
                        }
                    },
                    "surcharge_details": null,
                    "pm_auth_connector": null
                }
            ]
        },
```

## Checklist
<!-- Put an `x` in the boxes that apply -->

- [x] I formatted the code `cargo +nightly fmt --all`
- [x] I addressed lints thrown by `cargo clippy`
- [x] I reviewed the submitted code
- [ ] I added unit tests for my changes where possible


Testing:
Tested it through Postman.

- Create Connector (Stripe):
```
{
    "connector_type": "payment_processor",
    "connector_name": "stripe",
    "business_country": "US",
    "business_label": "default",
    "connector_account_details": {
        "auth_type": "HeaderKey",
        "api_key": "some key here"
    },
    "test_mode": false,
    "disabled": false,
    "payment_methods_enabled": [
        {
            "payment_method": "pay_later",
            "payment_method_types": [
                {
                    "minimum_amount": 1,
                    "maximum_amount": 68607706,
                    "recurring_enabled": true,
                    "installment_payment_enabled": true,
                    "payment_experience": "redirect_to_url",
                    "payment_method_type": "affirm"
                }
            ]
        },
        {
            "payment_method": "pay_later",
            "payment_method_types": [
                {
                    "minimum_amount": 1,
                    "maximum_amount": 68607706,
                    "recurring_enabled": true,
                    "installment_payment_enabled": true,
                    "payment_experience": "redirect_to_url",
                    "payment_method_type": "afterpay_clearpay"
                }
            ]
        },
        {
            "payment_method": "pay_later",
            "payment_method_types": [
                {
                    "minimum_amount": 1,
                    "maximum_amount": 68607706,
                    "recurring_enabled": true,
                    "installment_payment_enabled": true,
                    "payment_experience": "redirect_to_url",
                    "payment_method_type": "klarna"
                }
            ]
        },
        {
            "payment_method": "pay_later",
            "payment_method_types": [
                {
                    "minimum_amount": 1,
                    "maximum_amount": 68607706,
                    "recurring_enabled": true,
                    "installment_payment_enabled": true,
                    "payment_experience": "invoke_sdk_client",
                    "payment_method_type": "klarna"
                }
            ]
        },
        {
            "payment_method": "bank_redirect",
            "payment_method_types": [
                {
                    "payment_method_type": "ideal",
                    "payment_experience": null,
                    "card_networks": null,
                    "accepted_currencies": null,
                    "accepted_countries": null,
                    "minimum_amount": 1,
                    "maximum_amount": 68607706,
                    "recurring_enabled": true,
                    "installment_payment_enabled": true
                },
                {
                    "payment_method_type": "giropay",
                    "payment_experience": null,
                    "card_networks": null,
                    "accepted_currencies": null,
                    "accepted_countries": null,
                    "minimum_amount": 1,
                    "maximum_amount": 68607706,
                    "recurring_enabled": true,
                    "installment_payment_enabled": true
                },
                {
                    "payment_method_type": "sofort",
                    "payment_experience": null,
                    "card_networks": null,
                    "accepted_currencies": null,
                    "accepted_countries": null,
                    "minimum_amount": 1,
                    "maximum_amount": 68607706,
                    "recurring_enabled": true,
                    "installment_payment_enabled": true
                },
                {
                    "payment_method_type": "eps",
                    "payment_experience": null,
                    "card_networks": null,
                    "accepted_currencies": null,
                    "accepted_countries": null,
                    "minimum_amount": 1,
                    "maximum_amount": 68607706,
                    "recurring_enabled": true,
                    "installment_payment_enabled": true
                }
            ]
        },
        {
            "payment_method": "bank_debit",
            "payment_method_types": [
                {
                    "payment_method_type": "ach",
                    "minimum_amount": 1,
                    "maximum_amount": 68607706,
                    "recurring_enabled": true,
                    "installment_payment_enabled": true
                },
                {
                    "payment_method_type": "becs",
                    "minimum_amount": 1,
                    "maximum_amount": 68607706,
                    "recurring_enabled": true,
                    "installment_payment_enabled": true
                },
                {
                    "payment_method_type": "bacs",
                    "minimum_amount": 1,
                    "maximum_amount": 68607706,
                    "recurring_enabled": true,
                    "installment_payment_enabled": true
                },
                {
                    "payment_method_type": "sepa",
                    "minimum_amount": 1,
                    "maximum_amount": 68607706,
                    "recurring_enabled": true,
                    "installment_payment_enabled": true
                }
            ]
        },
        {
            "payment_method": "bank_transfer",
            "payment_method_types": [
                {
                    "payment_method_type": "ach",
                    "minimum_amount": 1,
                    "maximum_amount": 68607706,
                    "recurring_enabled": true,
                    "installment_payment_enabled": true
                },
                {
                    "payment_method_type": "bacs",
                    "minimum_amount": 1,
                    "maximum_amount": 68607706,
                    "recurring_enabled": true,
                    "installment_payment_enabled": true
                },
                {
                    "payment_method_type": "sepa",
                    "minimum_amount": 1,
                    "maximum_amount": 68607706,
                    "recurring_enabled": true,
                    "installment_payment_enabled": true
                }
            ]
        },
        {
            "payment_method": "card",
            "payment_method_types": [
                {
                    "payment_method_type": "credit",
                    "minimum_amount": 1,
                    "maximum_amount": 68607706,
                    "recurring_enabled": true,
                    "installment_payment_enabled": true,
                    "card_networks": [
                        "AmericanExpress",
                        "Discover",
                        "Interac",
                        "JCB",
                        "Mastercard",
                        "Visa",
                        "DinersClub",
                        "UnionPay",
                        "RuPay"
                    ]
                }
            ]
        },
        {
            "payment_method": "card",
            "payment_method_types": [
                {
                    "payment_method_type": "debit",
                    "minimum_amount": 1,
                    "maximum_amount": 68607706,
                    "recurring_enabled": true,
                    "installment_payment_enabled": true,
                    "card_networks": [
                        "AmericanExpress",
                        "Discover",
                        "Interac",
                        "JCB",
                        "Mastercard",
                        "Visa",
                        "DinersClub",
                        "UnionPay",
                        "RuPay"
                    ]
                }
            ]
        },
        {
            "payment_method": "wallet",
            "payment_method_types": [
                {
                    "payment_method_type": "apple_pay",
                    "payment_experience": "invoke_sdk_client",
                    "minimum_amount": 1,
                    "maximum_amount": 68607706,
                    "recurring_enabled": true,
                    "installment_payment_enabled": true
                }
            ]
        },
        {
            "payment_method": "wallet",
            "payment_method_types": [
                {
                    "payment_method_type": "google_pay",
                    "payment_experience": "invoke_sdk_client",
                    "minimum_amount": 1,
                    "maximum_amount": 68607706,
                    "recurring_enabled": true,
                    "installment_payment_enabled": true
                },
                {
                    "payment_method_type": "we_chat_pay",
                    "payment_experience": "invoke_sdk_client",
                    "minimum_amount": 1,
                    "maximum_amount": 68607706,
                    "recurring_enabled": true,
                    "installment_payment_enabled": true
                }
            ]
        }
    ],
    "metadata": {
        "google_pay": {
            "allowed_payment_methods": [
                {
                    "type": "CARD",
                    "parameters": {
                        "allowed_auth_methods": [
                            "PAN_ONLY",
                            "CRYPTOGRAM_3DS"
                        ],
                        "allowed_card_networks": [
                            "AMEX",
                            "DISCOVER",
                            "INTERAC",
                            "JCB",
                            "MASTERCARD",
                            "VISA"
                        ]
                    },
                    "tokenization_specification": {
                        "type": "PAYMENT_GATEWAY",
                        "parameters": {
                            "gateway": "example",
                            "gateway_merchant_id": "{{gateway_merchant_id}}"
                        }
                    }
                }
            ],
            "merchant_info": {
                "merchant_name": "Narayan Bhat"
            }
        }
    }
}
```

- Create Payment (Confirm set to false):
```
{
  "amount": 100,
  "currency": "USD",
  "confirm": false,
  "capture_method": "automatic",
  "capture_on": "2022-09-10T10:11:12Z",
  "amount_to_capture": 100,
  "customer_id": "StripeCustomer",
  "email": "guest@example.com",
  "name": "John Doe",
  "phone": "999999999",
  "phone_country_code": "+1",
  "description": "Its my first payment request",
  "authentication_type": "no_three_ds",
  "return_url": "https://google.com",
  "payment_method": "bank_debit",
  "payment_method_type": "ach",
  "payment_method_data": {
    "bank_debit": {
      "ach_bank_debit":{
          "account_number" : "40308669",
          "routing_number" : "121000358",
          "sort_code" : "560036",
          "shopper_email" : "example@gmail.com",
          "card_holder_name": "joseph Doe",
          "bank_account_holder_name": "David Archer",
             "billing_details":{
                "houseNumberOrName":"50",
                "street":"Test Street",
                "city":"Amsterdam",
                "stateOrProvince":"NY",
                "postalCode":"12010",
                "country":"US",
                "name" : "A. Klaassen",
                "email" : "example@gmail.com"
            },
            "reference": "daslvcgbaieh"
      }
    }
  },
  "billing": {
    "address": {
      "line1": "1467",
      "line2": "Harrison Street",
      "line3": "Harrison Street",
      "city": "San Fransico",
      "state": "California",
      "zip": "94122",
      "country": "GB",
      "first_name": "joseph",
      "last_name": "Doe"
    },
    "phone": {
      "number": "8056594427",
      "country_code": "+91"
    }
  },
  "shipping": {
    "address": {
      "line1": "1467",
      "line2": "Harrison Street",
      "line3": "Harrison Street",
      "city": "San Fransico",
      "state": "California",
      "zip": "94122",
      "country": "GB",
      "first_name": "joseph",
      "last_name": "Doe"
    },
    "phone": {
      "number": "8056594427",
      "country_code": "+91"
    }
  },
  "statement_descriptor_name": "joseph",
  "statement_descriptor_suffix": "JS",
  "metadata": {
    "udf1": "value1",
    "new_customer": "true",
    "login_date": "2019-09-10T10:11:12Z"
  }
}
```

- Do a list calll to get the ach, becs and bacs details from dynamic fields:
```
curl --location 'http://localhost:8080/account/payment_methods?client_secret={{client_secret}}' \
--header 'Accept: application/json' \
--header 'api-key: {{publishable_key}}'
```

- The response should contain the following:
```
{
            "payment_method": "bank_debit",
            "payment_method_types": [
                {
                    "payment_method_type": "sepa",
                    "payment_experience": null,
                    "card_networks": null,
                    "bank_names": null,
                    "bank_debits": {
                        "eligible_connectors": [
                            "stripe"
                        ]
                    },
                    "bank_transfers": null,
                    "required_fields": {
                        "billing.email": {
                            "required_field": "payment_method_data.billing.email",
                            "display_name": "email",
                            "field_type": "user_email_address",
                            "value": "guest@example.com"
                        },
                        "billing.address.last_name": {
                            "required_field": "payment_method_data.billing.address.last_name",
                            "display_name": "owner_name",
                            "field_type": "user_billing_name",
                            "value": "Doe"
                        },
                        "payment_method_data.bank_debit.sepa_bank_debit.iban": {
                            "required_field": "payment_method_data.bank_debit.sepa_bank_debit.iban",
                            "display_name": "iban",
                            "field_type": "user_iban",
                            "value": null
                        },
                        "billing.address.first_name": {
                            "required_field": "payment_method_data.billing.address.first_name",
                            "display_name": "billing_first_name",
                            "field_type": "user_billing_name",
                            "value": "joseph"
                        }
                    },
                    "surcharge_details": null,
                    "pm_auth_connector": null
                },
                {
                    "payment_method_type": "becs",
                    "payment_experience": null,
                    "card_networks": null,
                    "bank_names": null,
                    "bank_debits": {
                        "eligible_connectors": [
                            "stripe"
                        ]
                    },
                    "bank_transfers": null,
                    "required_fields": {
                        "payment_method_data.bank_debit.becs_bank_debit.account_number": {
                            "required_field": "payment_method_data.bank_debit.becs_bank_debit.account_number",
                            "display_name": "bank_account_number",
                            "field_type": "user_bank_account_number",
                            "value": null
                        },
                        "payment_method_data.bank_debit.becs_bank_debit.bsb_number": {
                            "required_field": "payment_method_data.bank_debit.becs_bank_debit.bsb_number",
                            "display_name": "bsb_number",
                            "field_type": "text",
                            "value": null
                        },
                        "billing.email": {
                            "required_field": "payment_method_data.billing.email",
                            "display_name": "email",
                            "field_type": "user_email_address",
                            "value": "guest@example.com"
                        },
                        "billing.address.first_name": {
                            "required_field": "payment_method_data.billing.address.first_name",
                            "display_name": "billing_first_name",
                            "field_type": "user_billing_name",
                            "value": "joseph"
                        },
                        "billing.address.last_name": {
                            "required_field": "payment_method_data.billing.address.last_name",
                            "display_name": "owner_name",
                            "field_type": "user_billing_name",
                            "value": "Doe"
                        }
                    },
                    "surcharge_details": null,
                    "pm_auth_connector": null
                },
                {
                    "payment_method_type": "bacs",
                    "payment_experience": null,
                    "card_networks": null,
                    "bank_names": null,
                    "bank_debits": {
                        "eligible_connectors": [
                            "stripe"
                        ]
                    },
                    "bank_transfers": null,
                    "required_fields": {
                        "billing.address.line1": {
                            "required_field": "payment_method_data.billing.address.line1",
                            "display_name": "line1",
                            "field_type": "user_address_line1",
                            "value": "1467"
                        },
                        "billing.address.first_name": {
                            "required_field": "payment_method_data.billing.address.first_name",
                            "display_name": "billing_first_name",
                            "field_type": "user_billing_name",
                            "value": "joseph"
                        },
                        "billing.address.zip": {
                            "required_field": "payment_method_data.billing.address.zip",
                            "display_name": "zip",
                            "field_type": "user_address_pincode",
                            "value": "94122"
                        },
                        "payment_method_data.bank_debit.bacs_bank_debit.account_number": {
                            "required_field": "payment_method_data.bank_debit.bacs_bank_debit.account_number",
                            "display_name": "bank_account_number",
                            "field_type": "user_bank_account_number",
                            "value": null
                        },
                        "payment_method_data.bank_debit.bacs_bank_debit.sort_code": {
                            "required_field": "payment_method_data.bank_debit.bacs_bank_debit.sort_code",
                            "display_name": "bank_sort_code",
                            "field_type": "text",
                            "value": null
                        },
                        "billing.address.country": {
                            "required_field": "payment_method_data.billing.address.country",
                            "display_name": "country",
                            "field_type": {
                                "user_address_country": {
                                    "options": [
                                        "UK"
                                    ]
                                }
                            },
                            "value": "GB"
                        }
                    },
                    "surcharge_details": null,
                    "pm_auth_connector": null
                },
                {
                    "payment_method_type": "ach",
                    "payment_experience": null,
                    "card_networks": null,
                    "bank_names": null,
                    "bank_debits": {
                        "eligible_connectors": [
                            "stripe"
                        ]
                    },
                    "bank_transfers": null,
                    "required_fields": {
                        "billing.address.first_name": {
                            "required_field": "payment_method_data.billing.address.first_name",
                            "display_name": "billing_first_name",
                            "field_type": "user_billing_name",
                            "value": "joseph"
                        },
                        "billing.address.last_name": {
                            "required_field": "payment_method_data.billing.address.last_name",
                            "display_name": "owner_name",
                            "field_type": "user_billing_name",
                            "value": "Doe"
                        },
                        "payment_method_data.bank_debit.ach_bank_debit.account_number": {
                            "required_field": "payment_method_data.bank_debit.ach_bank_debit.account_number",
                            "display_name": "bank_account_number",
                            "field_type": "user_bank_account_number",
                            "value": null
                        },
                        "payment_method_data.bank_debit.ach_bank_debit.routing_number": {
                            "required_field": "payment_method_data.bank_debit.ach_bank_debit.routing_number",
                            "display_name": "bank_routing_number",
                            "field_type": "text",
                            "value": null
                        }
                    },
                    "surcharge_details": null,
                    "pm_auth_connector": null
                }
            ]
        },
```

Patch:
diff --git a/crates/router/src/configs/defaults/payment_connector_required_fields.rs b/crates/router/src/configs/defaults/payment_connector_required_fields.rs
index 4e80ccf027e..1cb41827be3 100644
--- a/crates/router/src/configs/defaults/payment_connector_required_fields.rs
+++ b/crates/router/src/configs/defaults/payment_connector_required_fields.rs
@@ -11521,18 +11521,18 @@ impl Default for settings::RequiredFields {
                                             }
                                         ),
                                         (
-                                            "payment_method_data.bank_debit.ach.account_number".to_string(),
+                                            "payment_method_data.bank_debit.ach_bank_debit.account_number".to_string(),
                                             RequiredFieldInfo {
-                                                required_field: "payment_method_data.bank_debit.ach.account_number".to_string(),
+                                                required_field: "payment_method_data.bank_debit.ach_bank_debit.account_number".to_string(),
                                                 display_name: "bank_account_number".to_string(),
                                                 field_type: enums::FieldType::UserBankAccountNumber,
                                                 value: None,
                                             }
                                         ),
                                         (
-                                            "payment_method_data.bank_debit.ach.routing_number".to_string(),
+                                            "payment_method_data.bank_debit.ach_bank_debit.routing_number".to_string(),
                                             RequiredFieldInfo {
-                                                required_field: "payment_method_data.bank_debit.ach.routing_number".to_string(),
+                                                required_field: "payment_method_data.bank_debit.ach_bank_debit.routing_number".to_string(),
                                                 display_name: "bank_routing_number".to_string(),
                                                 field_type: enums::FieldType::Text,
                                                 value: None,
@@ -11563,18 +11563,18 @@ impl Default for settings::RequiredFields {
                                                     }
                                                 ),
                                                 (
-                                                    "payment_method_data.bank_debit.ach.account_number".to_string(),
+                                                    "payment_method_data.bank_debit.ach_bank_debit.account_number".to_string(),
                                                     RequiredFieldInfo {
-                                                        required_field: "payment_method_data.bank_debit.ach.account_number".to_string(),
+                                                        required_field: "payment_method_data.bank_debit.ach_bank_debit.account_number".to_string(),
                                                         display_name: "bank_account_number".to_string(),
                                                         field_type: enums::FieldType::UserBankAccountNumber,
                                                         value: None,
                                                     }
                                                 ),
                                                 (
-                                                    "payment_method_data.bank_debit.ach.routing_number".to_string(),
+                                                    "payment_method_data.bank_debit.ach_bank_debit.routing_number".to_string(),
                                                     RequiredFieldInfo {
-                                                        required_field: "payment_method_data.bank_debit.ach.routing_number".to_string(),
+                                                        required_field: "payment_method_data.bank_debit.ach_bank_debit.routing_number".to_string(),
                                                         display_name: "bank_routing_number".to_string(),
                                                         field_type: enums::FieldType::Text,
                                                         value: None,
@@ -11732,18 +11732,18 @@ impl Default for settings::RequiredFields {
                                             }
                                         ),
                                         (
-                                            "payment_method_data.bank_debit.bacs.account_number".to_string(),
+                                            "payment_method_data.bank_debit.bacs_bank_debit.account_number".to_string(),
                                             RequiredFieldInfo {
-                                                required_field: "payment_method_data.bank_debit.bacs.account_number".to_string(),
+                                                required_field: "payment_method_data.bank_debit.bacs_bank_debit.account_number".to_string(),
                                                 display_name: "bank_account_number".to_string(),
                                                 field_type: enums::FieldType::UserBankAccountNumber,
                                                 value: None,
                                             }
                                         ),
                                         (
-                                            "payment_method_data.bank_debit.bacs.sort_code".to_string(),
+                                            "payment_method_data.bank_debit.bacs_bank_debit.sort_code".to_string(),
                                             RequiredFieldInfo {
-                                                required_field: "payment_method_data.bank_debit.bacs.sort_code".to_string(),
+                                                required_field: "payment_method_data.bank_debit.bacs_bank_debit.sort_code".to_string(),
                                                 display_name: "bank_sort_code".to_string(),
                                                 field_type: enums::FieldType::Text,
                                                 value: None,
@@ -11804,18 +11804,18 @@ impl Default for settings::RequiredFields {
                                                 }
                                             ),
                                             (
-                                                "payment_method_data.bank_debit.bacs.account_number".to_string(),
+                                                "payment_method_data.bank_debit.bacs_bank_debit.account_number".to_string(),
                                                 RequiredFieldInfo {
-                                                    required_field: "payment_method_data.bank_debit.bacs.account_number".to_string(),
+                                                    required_field: "payment_method_data.bank_debit.bacs_bank_debit.account_number".to_string(),
                                                     display_name: "bank_account_number".to_string(),
                                                     field_type: enums::FieldType::UserBankAccountNumber,
                                                     value: None,
                                                 }
                                             ),
                                             (
-                                                "payment_method_data.bank_debit.bacs.sort_code".to_string(),
+                                                "payment_method_data.bank_debit.bacs_bank_debit.sort_code".to_string(),
                                                 RequiredFieldInfo {
-                                                    required_field: "payment_method_data.bank_debit.bacs.sort_code".to_string(),
+                                                    required_field: "payment_method_data.bank_debit.bacs_bank_debit.sort_code".to_string(),
                                                     display_name: "bank_sort_code".to_string(),
                                                     field_type: enums::FieldType::Text,
                                                     value: None,
@@ -11854,18 +11854,18 @@ impl Default for settings::RequiredFields {
                                             }
                                         ),
                                         (
-                                            "payment_method_data.bank_debit.becs.account_number".to_string(),
+                                            "payment_method_data.bank_debit.becs_bank_debit.account_number".to_string(),
                                             RequiredFieldInfo {
-                                                required_field: "payment_method_data.bank_debit.becs.account_number".to_string(),
+                                                required_field: "payment_method_data.bank_debit.becs_bank_debit.account_number".to_string(),
                                                 display_name: "bank_account_number".to_string(),
                                                 field_type: enums::FieldType::UserBankAccountNumber,
                                                 value: None,
                                             }
                                         ),
                                         (
-                                            "payment_method_data.bank_debit.becs.bsb_number".to_string(),
+                                            "payment_method_data.bank_debit.becs_bank_debit.bsb_number".to_string(),
                                             RequiredFieldInfo {
-                                                required_field: "payment_method_data.bank_debit.becs.bsb_number".to_string(),
+                                                required_field: "payment_method_data.bank_debit.becs_bank_debit.bsb_number".to_string(),
                                                 display_name: "bsb_number".to_string(),
                                                 field_type: enums::FieldType::Text,
                                                 value: None,
@@ -11906,18 +11906,18 @@ impl Default for settings::RequiredFields {
                                                 }
                                             ),
                                             (
-                                                "payment_method_data.bank_debit.bacs.account_number".to_string(),
+                                                "payment_method_data.bank_debit.becs_bank_debit.account_number".to_string(),
                                                 RequiredFieldInfo {
-                                                    required_field: "payment_method_data.bank_debit.bacs.account_number".to_string(),
+                                                    required_field: "payment_method_data.bank_debit.becs_bank_debit.account_number".to_string(),
                                                     display_name: "bank_account_number".to_string(),
                                                     field_type: enums::FieldType::UserBankAccountNumber,
                                                     value: None,
                                                 }
                                             ),
                                             (
-                                                "payment_method_data.bank_debit.bacs.sort_code".to_string(),
+                                                "payment_method_data.bank_debit.becs_bank_debit.sort_code".to_string(),
                                                 RequiredFieldInfo {
-                                                    required_field: "payment_method_data.bank_debit.bacs.sort_code".to_string(),
+                                                    required_field: "payment_method_data.bank_debit.becs_bank_debit.sort_code".to_string(),
                                                     display_name: "bank_sort_code".to_string(),
                                                     field_type: enums::FieldType::Text,
                                                     value: None,