Kube attach strategy doesn't work with non root images
Overview
When running a job with a non root image such as registry.gitlab.com/gitlab-org/gitlab-runner/alpine-no-root:latest
the job hangs forever, we can see this also by running the testKubernetesNoRootImageFeatureFlag
test https://gitlab.com/gitlab-org/gitlab-runner/-/jobs/607043339#L631.
This is most likely because the root image cannot write to the log file because it's owned by root.