Converting null literal or possible null value to non-nullable type.

The following artifacts were uploaded using a version of actions/upload-artifact that is scheduled for deprecation: "D2L.Security.OAuth2.93720e0893ced622385d34d36d36a61c1a1dc3d7". Please update your workflow to use v4 of the artifact actions. Learn more: https://github.blog/changelog/2024-04-16-deprecation-notice-v3-of-the-artifact-actions/

The following actions uses Node.js version which is deprecated and will be forced to run on node20: Brightspace/third-party-actions@actions/upload-artifact. For more info: https://github.blog/changelog/2024-03-07-github-actions-all-actions-will-run-on-node20-instead-of-node16-by-default/

Converting null literal or possible null value to non-nullable type.