Omnibus changes for easier move forward

Well, the re-re-re-re-revert of the ingress regarding the webservice should allow us to have a smoother update with less download time while we chase down https://gitlab.com/gitlab-org/gitlab/-/issues/273405

Anyway, changes are harmless, the only difference with the current config will be in omnibus with:

gitlab_rails['auto_migrate'] = true

Which is already enabled now.