Make automatic joining work #1421

Job	Run time
Shellcheck	4s
Prepare	46s
Dependency	4s
Ruff check and force	6s
Check commit	42s
Create pytest cache for Python 3.13	11s
Run pytest using Python 3.13	18s
Process test coverage	10s
Run mypy	7s
Process test complexity	14s
Build and publish Python 🐍 distributions 📦 to TestPyPI	21s
	3m 3s

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