Merge branch 'renovate-gems/omniauth-saml' into 'master'

Update dependency omniauth-saml to v2.2.2

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/183623



Merged-by: Andrew Evans <aevans@gitlab.com>
Approved-by: Drew Blessing <drew@gitlab.com>
Approved-by: Andrew Evans <aevans@gitlab.com>
Co-authored-by: GitLab Renovate Bot <gitlab-bot@gitlab.com>