Context

Improve centralized automated release capability.

• Version handling: instead of giving the post version, make it optional and default to {x.y+1.0.dev0}

  for a minor release and

  {x.y.z+1.dev0}

  for a patch release.

• Release notes: scrape the release notes from the changelog to populate the draft GitHub Release, which can also be used as the forum post body.
• GitHub Attestation: implement GitHub Attestations for our dist files.

Definition of done

Above improvement are made and tested in PyMongo.

Pitfalls

None