Merge branch '495694-feature-test-approval-rules' into 'master'

Add feature tests for editing approval rules in merge requests

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/168087



Merged-by: Jerry Seto <jseto@gitlab.com>
Approved-by: Jay McCure <jmccure@gitlab.com>
Approved-by: Javiera Tapia <jtapia@gitlab.com>
Approved-by: Gavin Hinfey <ghinfey@gitlab.com>
Reviewed-by: Joe Woodward <jwoodward@gitlab.com>
Reviewed-by: Jay McCure <jmccure@gitlab.com>
Reviewed-by: Javiera Tapia <jtapia@gitlab.com>
Reviewed-by: Duo Code Reviewer <duo-code-review-bot@gitlab.com>