Update and release gitlab-experiment for version TESTING

THIS MR IS A RELEASE TESTING MR

Release gitlab-experiment version TESTING

• Diff: https://gitlab.com/gitlab-org/gitlab-experiment/-/compare/v0.6.1-test...jj-release-automation

• Checklist before merging:

  • Diff link is up-to-date.
  • The version has been increased according SemVer.
  • Release notes are accurate.
  • Gitlab project has been updated and CI is passing