Fix AWS blocking call

[chemelli74]

Breaking change

Proposed change

Fix following error:

2024-06-10 09:40:41.237 WARNING (MainThread) [homeassistant.util.loop] Detected blocking call to listdir inside the event loop by integration 'aws'
at homeassistant/components/aws/notify.py, line 38: return await session.get_available_regions(service) (offender: /usr/local/lib/python3.12/site-pa
ckages/botocore/loaders.py, line 311: api_versions = os.listdir(full_dirname)), please create a bug report at https://github.com/home-assistant/core
/issues?q=is%3Aopen+is%3Aissue+label%3A%22integration%3A+aws%22

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[frenck]

@chemelli74 The CI is failing, could you take a look?

Thanks 👍

../Frenck

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[bdraco]

We can't run a coro in the executor.

This probably needs to be fixed in the library itself or we can work around it by calling whatever its calling under the hood if its initializing / loading a cache from disk before this function so its not called in the event loop when this function does get called.

[github-actions]

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[chemelli74]

Reference: aio-libs/aiobotocore#1196