Merge branch 'dblessing_remove_group_saml_jit_feature_flag' into 'master'

Remove group_saml_jit_errors feature flag

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/128388



Merged-by: Imre Farkas <ifarkas@gitlab.com>
Approved-by: Imre Farkas <ifarkas@gitlab.com>
Co-authored-by: Drew Blessing <drew@gitlab.com>