Delta unit test activation
In !716 (merged), the check for delta units was disabled. This needs to be reactivated.
The old module-image for the shared runners will be discontinued on October 31. All users still referencing gitlab-registry.mpcdf.mpg.de/mpcdf/module-image in their CI pipelines need to switch to the new CI images now, see instructions here.
In !716 (merged), the check for delta units was disabled. This needs to be reactivated.