Bump to a2 test-version #3428

Job	Run time
Dependency	4s
Shellcheck	5s
Cache identify	5s
Prepare	17s
Ruff check and force	10s
Check commit	29s
Run pytest using Python 3.14	33s
Process test coverage	13s
Run mypy	0s
Process test complexity	6s
Build and publish Python 🐍 distributions 📦 to TestPyPI	12s
	2m 14s

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