The runner's label-to-image mapping got repointed at Gitea's own official runner image (docker.gitea.com/runner-images:ubuntu-latest, has Node out of the box) — the earlier opensuse/leap:16.0 mapping for brick-build specifically was what broke check/renovate on 2026-09-12, not brick-build the label itself. Back to pinning both to this machine specifically instead of whichever runner answers to the shared ubuntu-latest label.