Merge branch 'log-project-deletion' into 'master'

Add a log message when a project is scheduled for destruction for debugging

We have a lot of projects that are in `pending_delete` state. It's not clear whether they were ever scheduled for destruction, or whether Sidekiq just dropped the job due to `MemoryKiller` or some other reason.

Also this will provide a record of which user destroys a project.

#20365 

See merge request !5540

app/models/project.rb

@@ -1164,7 +1164,10 @@ class Project < ActiveRecord::Base
   def schedule_delete!(user_id, params)
     # Queue this task for after the commit, so once we mark pending_delete it will run
-    run_after_commit { ProjectDestroyWorker.perform_async(id, user_id, params) }
+    run_after_commit do
+      job_id = ProjectDestroyWorker.perform_async(id, user_id, params)
+      Rails.logger.info("User #{user_id} scheduled destruction of project #{path_with_namespace} with job ID #{job_id}")
+    end
     update_attribute(:pending_delete, true)
   end