Bump to v1.8.2a0 for testing #5817

Job	Run time
Shellcheck	4s
Dependency	6s
Cache identify	14s
Prepare	1m 27s
Ruff check and force	18s
Check commit	29s
Run pytest using Python 3.13	41s
Run pytest using Python 3.14	27s
Run mypy	0s
Process test coverage	0s
Process test complexity	-1s
Build and publish Python 🐍 distributions 📦 to TestPyPI	-1s
	3m 44s

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