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.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>