Merge branch 'docs/stop-puma-when-attempting-restore' into 'master'

Docs - stop Puma when attempting restore

See merge request gitlab-org/gitlab!22945

doc/raketasks/backup_restore.md

@@ -740,6 +740,7 @@ running:
 
 ```shell
 sudo gitlab-ctl stop unicorn
+sudo gitlab-ctl stop puma
 sudo gitlab-ctl stop sidekiq
 # Verify
 sudo gitlab-ctl status