compile-and-deploy netpol allows port 2222 (gitlab-shell) and 8181
(webservice) but NOT port 5000 (gitlab-registry). The deps-cache build
needs port 5000 to push the resulting image, so kaniko was failing
with: dial tcp 10.32.4.209:5000: i/o timeout.
ci-pipeline netpol (used by build-ci-image-template, which also pushes
to gitlab-registry via kaniko) does allow port 5000 to app: registry.
Reuse that label.
609c573efc