Merge branch 'docs-saml-sso-from-core-at-self-hosted' into 'master'

docs: Specify tiers for SAML SSO at self-hosted plans

See merge request gitlab-org/gitlab!34040

changelogs/unreleased/docs-saml-sso-from-core-at-self-hosted.yml

+---
+title: Specify tiers for SAML SSO at self-hosted plans
+merge_request: 34040
+author: Takuya Noguchi
+type: other

doc/integration/saml.md

-# SAML OmniAuth Provider
+# SAML OmniAuth Provider **(CORE ONLY)**
 
 Note that: