Updated code to verify client_id against cid instead of aud.

[apegadoboureghida]

Changes Made

This pull request addresses an issue in the codebase where the client_id was being verified against the aud claim, which was incorrect. The correct verification should be against the cid claim. This PR updates the code to verify the client_id against the cid claim and ensures the variable names in the code and tests reflect this correction.

Details

• In the AccessTokenVerifier class, the verify_client_id method has been updated to verify the client_id against the cid claim instead of the aud claim.
• The corresponding tests have been updated to use the correct variable names.

Reasons for the Change

The previous code was performing an incorrect verification of the client_id against the aud claim, which could lead to validation errors. This update ensures that the client_id is correctly verified against the cid claim, aligning with the intended functionality.

Checklist

• [x] Code has been updated to verify client_id against the cid claim.
• [x] Tests have been modified to use the updated variable names.
• [x] Code and tests have been reviewed for correctness.
• [x] No new linting or style violations introduced.
• [x] Existing test suite passes with the changes.

Related Issues

None.

Additional Notes

No additional notes.