Add the GFZ deployment on staging and prod

This MR adds the deployment for the gfz prod and gfz staging systems out of the orchestration repo. As it combines all the services in an nginx, it works on top of the !1 (merged) MR. While the !1 (merged) is focused on an dev environment this MR here focus on production configurations.

Some changes on the sub modules where necessary:

• frontend branch to contain the upload functionality (which was necessary to test the upload)
• cv branch to configure the static url for the cv (so that their static files are delivered from the nginx)
• backend branch to use the production configuration

This branch also contains code for a backup functionality for staging (before a deployment) and production (before a deployment and on a daily base - via scheduled pipelines).

The deployment here is meant to be used when we are sure that the individual sub repos are ready and the chosen versions are compatible to each other.