Add additional printer columns to CRD

It improves the display of resources:

❯ k get sur -A
NAMESPACE          NAME                         AGE    READY   STATUS
preview-kf8anilz   management-cluster-preview   113s   False   Failed to reconcile sylvaUnitsRelease: GitRepository.source.toolkit.fluxcd.io "values-repo" not found
                                                ^^^^^^^^^^^^^^^^^^^^
                                                New columns

And fix unit tests (in distinct commits) that seem the have slipped in since some branch was not properly rebased, and we're not testing the merged result prior to merge...