[REFACTOR]: Correct cypress tests env variables for Payment method list testing

[prajjwalkumar17]

Feature Description

Setting Stripe as Default Pass-by for configs of response in our PaymentMethodList test scenarios.

Possible Implementation

Refactors in Cypress.

Have you spent some time checking if this feature request has been raised before?

• I checked and didn't find a similar issue

Have you read the Contributing Guidelines?

• I have read the Contributing Guidelines

Are you willing to submit a PR?

Yes, I am willing to submit a PR!