Scans all install scripts using setup_nodejs and compares our
NODE_VERSION with upstream Dockerfile and package.json values.
Features:
- Detects FROM node:XX, nodesource/setup_XX, FROM alpine:X.Y
- Resolves Alpine package registry for nodejs version when
upstream uses alpine base images
- Caches Alpine version lookups to minimize requests
- Creates individual GitHub issues per script with investigation
checklist when drift is detected
- Rate-limited to avoid GitHub API throttling
- Runs weekly on Monday at 06:00 UTC + manual dispatch
