Docker Compose Prebuilds Support

[edulix]

Is your feature request related to a problem?
Docker Compose Prebuilds are not fully working, since it fails when pushing the images to the registry with an error like: Error building image: cannot push to repository

Which solution do you suggest?
Docker Compose Prebuilds push to registry should work.

Which alternative solutions exist?
Not using prebuilds.

Additional context
None.

[pascalbreuninger]

@edulix thanks for opening the issue, we'll look into it 👍