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. Adds
.github/workflows/release-rc.yml (reusable QRun-IO/.github
qbit-release-rc). Also writes the GA tag filter without brackets
(standard C5): [0-9] inside a YAML flow sequence does not parse.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>