Added cppcheck to the template
Added the job cppcheck with the default value for allowing failure.
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.
Added the job cppcheck with the default value for allowing failure.