Display Provider ID for Group SAML

app/views/admin/identities/_identity.html.haml

 %tr
   %td
-    #{Gitlab::Auth::OAuth::Provider.label_for(identity.provider)} (#{identity.provider})
+    #{Gitlab::Auth::OAuth::Provider.label_for(identity.provider)} (#{identity.provider}) #{identity.saml_provider_id.present? ? "ID: #{identity.saml_provider_id}" : ""}
   %td
     = identity.extern_uid
   %td

changelogs/unreleased/arty-admin-idpid.yml

+---
+title: Display Group SAML provider ID in admin
+merge_request: 47034
+author:
+type: added