Bump version to v0.46.1a2 for testing #2933

Job	Run time
Shellcheck	6s
Dependency	3s
Cache identify	6s
Prepare	1m 17s
Ruff check and force	10s
Check commit	33s
Run pytest using Python 3.13	1m 41s
Process test coverage	13s
Run mypy	0s
Process test complexity	8s
Build and publish Python 🐍 distributions 📦 to TestPyPI	15s
	4m 32s

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