Feature - Add release_candidate tag for release candidates #555
Description
Release candidates serve as a staging point to review and discuss which issues will be included in an upcoming release. To facilitate this process, we need a 'release_candidate' label that can be applied to all closed issues since the last release when a release candidate is created. This label helps the team quickly identify and review the scope of work that's ready to be released.
The workflow should automatically apply the 'release_candidate' label to all closed issues since the last release when a release candidate is published. Then, when the actual release is created, the workflow should remove all 'release_candidate' labels from issues, as they will be tagged with the actual release tag instead. This keeps the labeling clean and ensures issues are properly categorized.