Merge branch 'jennli-quarantine-flaky-protected-branch-spec' into 'master'

Quarantine flaky protected_branches_spec context

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/142100



Merged-by: Peter Leitzen <pleitzen@gitlab.com>
Approved-by: Sam Figueroa <sfigueroa@gitlab.com>
Approved-by: Peter Leitzen <pleitzen@gitlab.com>
Co-authored-by: Jennifer Li <jli@gitlab.com>