Make the stubbed methods for SAML authorize paths more specific
https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/6190 required a change to these stubs, so this MR just maintains the CE-EE parity.
https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/6190 required a change to these stubs, so this MR just maintains the CE-EE parity.