Bump Version to 10.1.0

• Diff: https://gitlab.com/gitlab-org/gitlab-qa/compare/v10.0.0...6c629a6b069f0bf45c073977ed9ab9f429178ff5

• Release notes:

### Other changes (CI, backstage)

- !1133 Add System Log Errors to QA Failure Issues.

• 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.