Merge branch 'distinguish-user-access-denied-reasons' into 'master'

Distinguish rejection_message base case

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/112578



Merged-by: Drew Blessing <drew@gitlab.com>
Approved-by: Bob Van Landuyt <bob@gitlab.com>
Approved-by: Drew Blessing <drew@gitlab.com>
Co-authored-by: Katrin Leinweber <kleinweber@gitlab.com>