add await on _load_discovered_nodes #2474

Job	Run time
Cache identify	6s
Shellcheck	6s
Dependency	4s
Prepare	11s
Ruff check and force	12s
Check commit	31s
Run pytest using Python 3.13	24s
Process test coverage	14s
Run mypy	0s
Process test complexity	10s
Build and publish Python 🐍 distributions 📦 to TestPyPI	9s
	2m 7s

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