Add testing of the CMIP7 and CMOR workflow

[ekluzek]

As part of getting ready for CMIP7 experiments, we will need to start testing the workflow for it. This means testing running the cmip7 workflow with CMORization, time-series output, and CUPiD.

Note, that the ability run the CMOR output is something that's desired to be in place not only for CMIP7 but afterwards as a tool to use for ongoing model development. So there should be at least one separate test for running this on it's own.