Merge branch 'andrey-fix-failing-spec' into 'master'

Fall back to PAT UI fabrication when admin_api_client is missing

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/172655



Merged-by: Sanad Liaquat <sliaquat@gitlab.com>
Approved-by: Sanad Liaquat <sliaquat@gitlab.com>
Co-authored-by: Andrejs Cunskis <acunskis@gitlab.com>