Bump gitlab-omniauth-openid-connect from 0.5.0 to 0.9.1 (#17779)

Bumps [gitlab-omniauth-openid-connect](https://gitlab.com/gitlab-org/gitlab-omniauth-openid-connect) from 0.5.0 to 0.9.1.
- [Release notes](https://gitlab.com/gitlab-org/gitlab-omniauth-openid-connect/tags)
- [Changelog](https://gitlab.com/gitlab-org/gitlab-omniauth-openid-connect/blob/master/CHANGELOG.md)
- [Commits](https://gitlab.com/gitlab-org/gitlab-omniauth-openid-connect/compare/v0.5.0...v0.9.1)

---
updated-dependencies:
- dependency-name: gitlab-omniauth-openid-connect
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Gemfile

@@ -40,7 +40,7 @@ end
 gem 'net-ldap', '~> 0.17'
 gem 'omniauth-cas', '~> 2.0'
 gem 'omniauth-saml', '~> 1.10'
-gem 'gitlab-omniauth-openid-connect', '~>0.5.0', require: 'omniauth_openid_connect'
+gem 'gitlab-omniauth-openid-connect', '~>0.9.1', require: 'omniauth_openid_connect'
 gem 'omniauth', '~> 1.9'
 gem 'omniauth-rails_csrf_protection', '~> 0.1'