The /actions/tasks endpoint ignores `limit` and returns the whole list,
newest first, so `?limit=5` promised five rows it does not give. The
skill now selects the release.yml run of the tag directly (python3, as
verify-release.sh does), checked on v0.17.1: run 508, `v20.20.2`.
Also clarify check-frontend.yml's concurrency comment: same setup as
check-rust.yml, not the same group.
Refs #376
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
f19b027c5d