- Add MCR_REGISTRY constant, is_mcr / mcr_repo / fetch_mcr_tags helpers
mirroring the Docker Hub and GHCR pattern. Tags are fetched via the
Docker Registry V2 API with RFC 5988 Link-header pagination (anonymous
access; MCR is a public read mirror). Wire MCR into both the external
test_image_versions warning surface and the find_outdated_updates
orchestrator in utils.update.docker.
- Bump mcr.microsoft.com/playwright in test-e2e-playwright from
v1.59.1-noble to v1.60.0-noble — the update was surfaced by the new
MCR detection path.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>