Bump version to 7.27.1

• Diff: v7.27.0...6f97ea0f

• Release notes:

### Fixes

- !941 Add needed docker parameter for Elasticsearch 8

### Other changes (CI, backstage)

- !941 Add CI Decomposition QA job

• Checklist before merging:

  • Diff link is up-to-date.
  • Based on the diff, lib/gitlab/qa/version.rb is updated, according to SemVer.
  • Release notes are accurate.

• Checklist after merging:

  • Update the release notes for the newly created tag.