WIP: Add the registry port value to it's nginx template similar to how it is
done for the other nginx configs.
Fixes: https://gitlab.com/gitlab-org/omnibus-gitlab/issues/2687
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
done for the other nginx configs.
Fixes: https://gitlab.com/gitlab-org/omnibus-gitlab/issues/2687