Merge branch '412473-2-workflow-auto_cancel-on_new_commit' into 'master'

Add new syntax of workflow:auto_cancel:on_new_commit

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/137892



Merged-by: Allison Browne <abrowne@gitlab.com>
Approved-by: Allison Browne <abrowne@gitlab.com>
Reviewed-by: Furkan Ayhan <furkanayhn@gmail.com>
Reviewed-by: Allison Browne <abrowne@gitlab.com>
Reviewed-by: Tianwen Chen <tchen@gitlab.com>
Co-authored-by: Furkan Ayhan <furkanayhn@gmail.com>