Upgrade yam gem to support oauth2-client update

[cdrrazan]

We need to upgrade the yam gem to a version that is compatible with the latest oauth2-client gem.

Problem

The app depends on the yam gem. oauth2-client requires an updated version to support new features or security fixes. Upgrading oauth2-client necessitates upgrading yam to a compatible version.

Proposed Action

• Upgrade yam to a version compatible with the latest oauth2-client.
• Run tests and verify application functionality after the upgrade.

Acceptance Criteria

• yam is upgraded successfully.
• oauth2-client is upgraded without causing errors.
• All tests pass, and application behavior is unchanged.