Improve handling of empty jq results

[moshloop]

e,g.

       # We added a 0 in the jq list because CEL was behaving incorrectly for objects that returned just []
        - filter: >
            change.change_type == 'diff' &&
            jq('[.status.initContainerStatuses[]?.restartCount,.status.containerStatuses[]?.restartCount]', patch).all(rc, rc != 0)
            jq('[.status.initContainerStatuses[]?.restartCount,.status.containerStatuses[]?.restartCount, 0]', patch).all(rc, rc != 0)