Bump version to 7.24.1

• Diff: https://gitlab.com/gitlab-org/gitlab-qa/compare/v7.24.0...ecff1f1a41aad57b5a99411a174673e1bbcc8aee

• Release notes:

### Other changes (CI, backstage)

- !872 Prevent reporting script from commenting multiple times for same 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.