Revert the over-engineered linking attempts (provenance: false,
index annotations, dispatch tag input, Dockerfile source LABEL). Our
working repos (e.g. offendingcommit/infra) link GHCR packages with the
plain metadata-action labels + GITHUB_TOKEN push — none of the extras
helped or were needed. Match that.
Package<->repo linking is handled by the one-time Connect Repository
step in package settings.
Type ci → no version bump.