Merge branch 'v1-handle-unauthorized-error' into 'master'

Improve the unauthorized error message after cutoff

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/168027



Merged-by: Mark Chao <mchao@gitlab.com>
Approved-by: Mark Chao <mchao@gitlab.com>
Co-authored-by: Shinya Maeda <shinya@gitlab.com>