Update Payment Request Authentication

[armando-rodriguez-cko]

Description

This PR introduces updates to payment request authentication, adding support for advanced authentication options and exemptions, alongside improvements in testing for these new features.

Changes Made

Authentication and Payment Requests:

• Updated PaymentRequest to include:
  • Authentication: A new property to manage authentication flows using PreferredExperiences.
  • AuthorizationType: Supports specifying authorization types for payment requests.
• Introduced the Authentication class to handle a list of preferred authentication experiences.

Enums:

• Expanded the Exemption enum with new values:
  • OutOfScaScope, RecurringOperation, DataShare, SecureCorporatePayment.
• Added a new PreferredExperiences enum with values:
  • GoogleSpa and ThreeDs.

Unit and Integration Tests:

• Added test cases for:
  • Payments using preferred authentication experiences like GoogleSpa.
  • Verification of Authentication integration within payment requests.
• Enhanced dispute-related test cases:
  • SubmitArbitrationEvidence.
  • GetCompiledSubmittedArbitrationEvidence.
• Improved response validation in hosted payments and payment links tests.

Impact

• Advanced authentication: Enables support for preferred experiences and exemptions in payment requests.
• Enhanced testing: Increases coverage for new authentication features and scenarios.
• Seamless integration: Ensures backward compatibility while adding new capabilities.

Additional Notes

• Fully backward compatible.
• Sets the foundation for future enhancements in payment authentication.