Bug: Payload too large on file upload

Marvin reported that the file upload didn't work properly - and indeed the nginx in our prod environment doesn't include the configuration change to allow uploads of larger files then 1 MB. In the repo for the backend is this change included - but not in the docker images that were build in the orchestration repo for th GFZ.

Aim of this ticket is to:

• add those configuration settings to the prod vm (orchestration)
• add those configuration settings to the staging vm (orchestration)
• check the current deployment of the gfz image from the backend repo