Bump to v1.7.8a2 test-version #5665

Job	Run time
Dependency	6s
Cache identify	7s
Shellcheck	5s
Prepare	1m 52s
Ruff check and force	18s
Check commit	50s
Run pytest using Python 3.13	22s
Run mypy	27s
Process test coverage	23s
Process test complexity	15s
Build and publish Python 🐍 distributions 📦 to TestPyPI	13s
	4m 58s

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