Update dependency pytest to v9.0.3 #786

Job	Run time
Ruff check and force	9s
Shellcheck	3s
Check commit	44s
Run pytest using Python 3.13	11s
Run pytest using Python 3.14	13s
Run mypy	14s
Process test coverage	12s
Build and publish Python 🐍 distributions 📦 to TestPyPI	6s
Process test complexity	9s
	2m 1s

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