Bump to a12 #3277

Job	Run time
Shellcheck	4s
Cache identify	8s
Dependency	4s
Prepare	21s
Ruff check and force	6s
Check commit	1m 25s
Run pytest using Python 3.13	38s
Process test coverage	18s
Run mypy	0s
Process test complexity	11s
Build and publish Python 🐍 distributions 📦 to TestPyPI	15s
	3m 30s

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