fix(payment_methods): populate card fields while saving card again during metadata change condition

[Chethan-rao]

Type of Change

• Bugfix
• New feature
• Enhancement
• Refactoring
• Dependency updates
• Documentation
• CI/CD

Description

When the same card is being saved with metadata changes, the other fields of card like card_network, card_issuer, scheme, card_type, card_isin, card_issuing_country were getting saved with hardcoded value as None instead of getting its value from the existing saved card. This PR fixes the issue

Additional Changes

• This PR modifies the API contract
• This PR modifies the database schema
• This PR modifies application configuration/environment variables

Motivation and Context

How did you test it?

1. Save a card

curl --location 'http:https://localhost:8080/payments' \
--header 'Content-Type: application/json' \
--header 'Accept: application/json' \
--header 'api-key: dev_bS3Uz99HdVusSOy9rHtZqcevmpHt9L4N6WvNt5d16SwBgz53crKKEd6pCMrvVVbH' \
--data-raw '{
    "amount": 499,
    "currency": "USD",
    "confirm": true,
    "capture_method": "automatic",
    "customer_id": "cus_6Syv31iU1EeDKyfN1U7O",
    "email": "[email protected]",
    "customer_acceptance": {
        "acceptance_type": "online"
    },
    "payment_method": "card",
    "payment_method_type": "credit",
    "payment_method_data": {
        "card": {
            "card_number": "4242424242424242",
            "card_exp_month": "03",
            "card_exp_year": "2030",
            "card_holder_name": "Test Holder",
            "card_cvc": "737"
        }
    },
    "billing": {
        "address": {
            "city": "test",
            "country": "US",
            "line1": "here",
            "line2": "there",
            "line3": "anywhere",
            "zip": "560095",
            "state": "Washington",
            "first_name": "One",
            "last_name": "Two"
        },
        "phone": {
            "number": "1234567890",
            "country_code": "+1"
        },
        "email": "[email protected]"
    },
    "authentication_type": "no_three_ds"
}'

2. Hit list customer payment methods and all the card fields like card_network, issuer country, scheme, etc should be listed.

3. Save the same card again but with some different expiry.
4. Hit list customer payment methods and still the above fields has to be listed which was not the case before.

Checklist

• 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