chore(release): Bumped to Version 15.6.0

# [15.6.0](v15.5.0...v15.6.0) (2026-06-29)

### Features

* ignore non-jira configurations ([#27](#27)) ([15f0b67](15f0b67))

Author: alyf-linus

working_time/__init__.py

@@ -1 +1 @@
-__version__ = "15.5.0"
+__version__ = "15.6.0"