[FEATURE] Add decrypted apple pay support for ios app

[ShankarSinghC]

Feature Description

We currently support decrypted Apple Pay token flows for web applications. We need to extend this support to iOS applications.

Possible Implementation

To achieve this, merchants must provide an Apple Pay Payment Processing Certificate (PPC) and the corresponding Payment Processing Certificate key. These PPC and PPC keys will be used to decrypt the Apple Pay token before sending it to the connector. This approach eliminates the dependency on a specific Apple Pay merchant identifier, allowing the same set of certificates to be used across all connectors.

• Add a column (connector_wallets_details) in merchant connector account and develop an api (migrate cert) to store the encrypted certificates in the added column. #4791
• Code changes to get the certificates from the certificates column with fallback #4816
• Dashboard changes with fallback to write or read the certificates to the newly added column
• Migrate the apple pay certificates using the migrate cert api

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!