Remove old fixtures #5325

Job	Run time
Shellcheck	4s
Dependency	3s
Prepare	1m 2s
Ruff check and force	13s
Check commit	35s
Create pytest cache for Python 3.13.0	12s
Create pytest cache for Python 3.12	6s
Run pytest using Python 3.13.0	25s
Run pytest using Python 3.12	17s
Process test coverage	24s
Run mypy	22s
Build and publish Python 🐍 distributions 📦 to TestPyPI	34s
Process test complexity	12s
	4m 29s

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