Add loose foreign key for ci_job_token_project_scope_links.add_by_id

lib/gitlab/database/gitlab_loose_foreign_keys.yml

@@ -18,6 +18,10 @@ clusters_applications_runners:
   - table: ci_runners
     column: runner_id
     on_delete: async_nullify
+ci_job_token_project_scope_links:
+  - table: users
+    column: added_by_id
+    on_delete: async_nullify
 ci_namespace_mirrors:
   - table: namespaces
     column: namespace_id