Detection of skaffold dev [not run] mode fails with Skaffold 1.13+

[solsson]

kubernetes-assert/runtime-nodejs/kustomize/scrapeable-deployment.yaml

Line 45 in 0a337dc

fieldPath: metadata.labels['skaffold.dev/tail']

doesn't work anymore.

The labels I see on a new skaffold dev deployment is:

              app.kubernetes.io/managed-by=skaffold
              skaffold.dev/run-id=c999a4c5-db64-4f1c-9fe5-89f1b68b93fc