Description

The NodeJS implementation of semantic-release has the ability to automatically tag relevant PRs and issues with specified labels with the @semantic-release/github plugin. It would be useful for this Python version to also be able to do so.

Use cases

You can then easily see which issues and PRs have been released, and on which versions. Technically this is already possible for PRs by looking at the tags associated with the merge commit, but that requires extra steps.

Possible implementation

Since there is planned functionality for linking PRs into changelogs, presumably said PRs could be passed to a step that adds labels to them, or adds a comment on them.

Issues may be slightly more difficult as they are linked via PRs.