QRun-IO/.github#2 adds a tag-and-release job that signs vX with the
QRUN_TAG_SIGNING_KEY secret after Maven Central confirms the artifact.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Removes publish_hotfix_release: a hotfix/* branch push published a GA
release to Maven Central with no tag or review (QRun-IO/qbit-cdn#12,
QRun-IO/qqq#1121). hotfix/* branches now run test_only; a hotfix
release publishes from a reviewed vX.Y.Z tag through publish_release.
Adds .github/workflows/release-rc.yml (reusable QRun-IO/.github
qbit-release-rc): a manual dispatch, or merging a develop PR labelled
release:rc, merges develop into the release line and the release/* push
runs the existing CircleCI RC publish.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>