Revert cache configs
We're using a pull-through cache on the runner, so we can keep the upstream names here
Regarding current problems with the container registry pushing and deleting from and to the container registry is not working, and we are working on fixing this. As a current alternative, we can offer our Harbor instance, which can be reached at https://hub.cc-asp.fraunhofer.de.
We're using a pull-through cache on the runner, so we can keep the upstream names here