kettle-family 1.3.9: Find unpublished dependency blockers

🏷️ release kettle-family 🏷️ 1.3.9

Version 1.3.9 adds clean-blockers for locally installed, unpublished versions pinned by family lockfiles, including dependencies from other families. Registry-only update workflows also gain an earlier cleanup step instead of discovering those blockers only afterward.

Read the upstream release notes for the complete changes and see the project repository for usage and installation.