feat: added AutoRenewToken remote option

[petruki]

This pull request introduces a new background token auto-renewal feature to the client, allowing tokens to be proactively refreshed before expiration to reduce authentication latency. The implementation is opt-in via a new RemoteOptions.AutoRenewToken field. The pull request also updates GitHub Actions workflow dependencies and Go versions, and adds comprehensive tests for the new auto-renew logic.

Token Auto-Renewal Feature:

• Added a new AutoRenewToken boolean option to RemoteOptions and documented it in README.md. When enabled, the client schedules a background renewal of the authentication token shortly before it expires, reducing the chance of synchronous re-authentication delays during foreground requests. [1] [2] [3]
• Implemented the tokenAutoRenewer type in a new file client_auto_renew.go, which manages scheduling and safely updating tokens in the background, including robust handling of race conditions and cancellation. [1] [2] [3]
• Modified the client authentication flow in remote.go to support both synchronous and background token refresh, and to ensure thread safety and correct scheduling when AutoRenewToken is enabled. [1] [2]
• Ensured proper cleanup of the auto-renewer when the client stops background tasks or updates the silent token. [1] [2]

Testing:

• Added focused unit tests in client_auto_renew_test.go to verify the correct scheduling, race handling, and cancellation semantics of the background token renewer.

CI/CD and Dependency Updates:

• Updated GitHub Actions workflow files to use newer versions of actions/checkout, actions/setup-go, and sonarsource/sonarqube-scan-action, and bumped the default/tested Go version from 1.26.4 to 1.26.5. [1] [2] [3] [4] [5] [6] [7]

These changes together add a robust, opt-in mechanism for seamless token renewal, improve developer experience, and keep CI dependencies up to date.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
100.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud