remove async keyword #2339

Job	Run time
Cache identify	5s
Shellcheck	4s
Dependency	5s
Prepare	8s
Ruff check and force	9s
Check commit	32s
Run pytest using Python 3.13	25s
Process test coverage	11s
Run mypy	0s
Process test complexity	8s
Build and publish Python 🐍 distributions 📦 to TestPyPI	26s
	2m 13s

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