Merge branch 'hm-pipeline-execution-policy' into 'master'

Add group pipeline execution policy E2E spec

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/169380



Merged-by: Tiffany Rea <trea@gitlab.com>
Approved-by: Martin Čavoj <mcavoj@gitlab.com>
Approved-by: Marina Mosti <mmosti@gitlab.com>
Approved-by: Natalia Tepluhina <ntepluhina@gitlab.com>
Approved-by: Nivetha Prabakaran <nprabakaran@gitlab.com>
Approved-by: Tiffany Rea <trea@gitlab.com>
Reviewed-by: Andy Schoenen <asoiron@gitlab.com>
Reviewed-by: Martin Čavoj <mcavoj@gitlab.com>
Reviewed-by: Marina Mosti <mmosti@gitlab.com>
Co-authored-by: hmuralidhar <hmuralidhar@gitlab.com>