The following actions uses node12 which is deprecated and will be forced to run on node16: actions/setup-dotnet@v1. For more info: https://github.blog/changelog/2023-06-13-github-actions-all-actions-will-run-on-node16-instead-of-node12-by-default/

'UserController.SignOut()' hides inherited member 'ControllerBase.SignOut()'. To make the current member override that implementation, add the override keyword. Otherwise add the new keyword.