Hotfix for import-artifacts passing with failures

When it should have actually been failing here: https://repo1.dsop.io/dsop/metacontroller/kubeflow-1.0.2/metacontroller-v0.3.0/-/jobs/617427 due to the docker resource retrieval failure. Instead, the exception was caught, but the retries were never exceeded because we were breaking from the loop after the first failure.