Bump to v1.6.0 release-version #5134

Job	Run time
Dependency	6s
Prepare	48s
Shellcheck	6s
Ruff check and force	6s
Check commit	36s
Create pytest cache for Python 3.12	6s
Run pytest using Python 3.12	17s
Run mypy	11s
Process test coverage	18s
Build and publish Python 🐍 distributions 📦 to TestPyPI	25s
Process test complexity	5s
	3m 4s

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