Renovate no longer needs Docker access for a one-shot docker-run job:
switched to setup-node + npm install -g renovate (matching labelprint's
workflow), so it fits the same brick-build runner as check instead of
the stale "deploy" label. Also note down the build-log readability/API
gaps flagged from a real failed terrain build.
Runs renovate/renovate against this Gitea instance on the native
deploy runner, opening PRs for outdated Bundler dependencies instead
of relying on manually noticing (as happened with puma/mustermann
earlier).