Merge branch 'update-whitelist-link' into 'master'

Update query limiting whitelist link

See merge request gitlab-org/gitlab!21741

lib/api/users.rb

@@ -446,7 +446,7 @@ module API
       end
       # rubocop: disable CodeReuse/ActiveRecord
       delete ":id" do
-        Gitlab::QueryLimiting.whitelist('https://gitlab.com/gitlab-org/gitlab-foss/issues/42279')
+        Gitlab::QueryLimiting.whitelist('https://gitlab.com/gitlab-org/gitlab/issues/20757')
 
         authenticated_as_admin!