Issue:
Bug: refactor(configs): include env for cybersource in intergration_test



## Description
Include configs for cybersource in `Integration_test` file to facilitate successful cypress tests on our Integ environment

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
<!-- Describe your changes in detail -->
This will add the config for cybersource in Integ.

### Additional Changes

- [ ] This PR modifies the API contract
- [ ] This PR modifies the database schema
- [x] This PR modifies application configuration/environment variables

<!--
Provide links to the files with corresponding changes.

Following are the paths where you can find config files:
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).
-->
Due to configs not present the Cypress tests(blocklist) are failing.

## How did you test it?
<!--
Did you write an integration/unit/API test to verify the code changes?
Or did you test this change manually (provide relevant screenshots)?
-->
This is an env change, hence wouldn't require testing as such.

## Checklist
<!-- Put an `x` in the boxes that apply -->

- [ ] I formatted the code `cargo +nightly fmt --all`
- [ ] I addressed lints thrown by `cargo clippy`
- [ ] I reviewed the submitted code
- [ ] I added unit tests for my changes where possible


Testing:

This is an env change, hence wouldn't require testing as such.

Patch:
diff --git a/config/deployments/integration_test.toml b/config/deployments/integration_test.toml
index a498ad38995..39b19fd0535 100644
--- a/config/deployments/integration_test.toml
+++ b/config/deployments/integration_test.toml
@@ -289,6 +289,12 @@ ideal = { country = "NL", currency = "EUR" }
 klarna = { country = "AU,AT,BE,CA,CZ,DK,FI,FR,DE,GR,IE,IT,NL,NZ,NO,PL,PT,ES,SE,CH,GB,US", currency = "AUD,CAD,CHF,CZK,DKK,EUR,GBP,NOK,NZD,PLN,SEK,USD" }
 sofort = { country = "AT,BE,DE,IT,NL,ES", currency = "EUR" }
 
+[pm_filters.cybersource]
+credit = { currency = "USD" }
+debit = { currency = "USD" }
+apple_pay = { currency = "USD" }
+google_pay = { currency = "USD" }
+
 [pm_filters.volt]
 open_banking_uk = {country = "DE,GB,AT,BE,CY,EE,ES,FI,FR,GR,HR,IE,IT,LT,LU,LV,MT,NL,PT,SI,SK,BG,CZ,DK,HU,NO,PL,RO,SE,AU,BR", currency = "EUR,GBP,DKK,NOK,PLN,SEK,AUD,BRL"}