Issue:
fix(connector): [Prophetpay] Use refund_id as reference_id for Refund

## Type of Change
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- [x] Bugfix
- [ ] New feature
- [ ] Enhancement
- [ ] Refactoring
- [ ] Dependency updates
- [ ] Documentation
- [ ] CI/CD

## Description
<!-- Describe your changes in detail -->

- Replaced connector_request_reference_id with refund_id for refund.
- Removed response_code since we are not receiving it in case of failure
- Made tranSeqNumber optional
Closes [#3353](https://github.com/juspay/hyperswitch-cloud/issues/3353)

### Additional Changes

- [ ] This PR modifies the API contract
- [ ] This PR modifies the database schema
- [ ] This PR modifies application configuration/environment variables

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## Motivation and Context
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## How did you test it?
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- Craete a payment through Prophetpay Card Redirect
- If it is successful, go the refund
- The refund must be successful

<img width="1728" alt="Screenshot 2023-11-23 at 4 16 19 PM" src="https://github.com/juspay/hyperswitch/assets/73734619/e904fff8-04ee-4e43-b398-c2d1c3b39678">

<img width="1728" alt="Screenshot 2023-11-23 at 4 16 25 PM" src="https://github.com/juspay/hyperswitch/assets/73734619/a2cf1607-c034-49ee-b86b-52f719b1ba43">

## 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
- [ ] I added a [CHANGELOG](/CHANGELOG.md) entry if applicable


Resolution:
<think>
PR Context:
- Title: fix(connector): [Prophetpay] Use refund_id as reference_id for Refund
- Merged: 2023-11-23T14:08:00Z
- Files changed: 1 files
- Commits: 2 commits

Implementation approach:
## Type of Change
<!-- Put an `x` in the boxes that apply -->

- [x] Bugfix
- [ ] New feature
- [ ] Enhancement
- [ ] Refactoring
- [ ] Dependency updates
- [ ] Documentation
- [ ] CI/CD

## Description
<!-- Describe your changes in detail -->
Relative PR in main branch [#2966](https://github.com/juspay/hyperswitch/pull/2966)
- Replaced connector_request_reference_id with refund_id for refund.
- Removed response_code since we are not receiving it in case of failure
- Made tranSeq
</think>

To implement this, you'll need to modify:


**Detailed Implementation:**


**Commit 1:** fix(connector): [Prophetpay] Use refund_id as reference_id for Refund (#2962)
Files to modify:


**crates/router/src/connector/prophetpay/transformers.rs**
  Modify existing code