Improve exception-handling as suggested #3410

Job	Run time
Dependency	5s
Cache identify	7s
Shellcheck	5s
Prepare	7s
Ruff check and force	10s
Check commit	35s
Run pytest using Python 3.14	40s
Process test coverage	15s
Run mypy	-1s
Process test complexity	11s
Build and publish Python 🐍 distributions 📦 to TestPyPI	13s
	2m 27s

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