Attempt fixing flakiness of check config test

[balloob]

Description:

Attempt address some flakiness for check config script tests

[balloob]

Merging it and hope that it makes a difference. The flakiness is horrible.

[kellerza]

setLevel will defnitely be an improvement over the 6 statements in SILENCE!

Just for my clarity, mock_coro is only really needed for async_enable_logging?

Still want to work on this to reduce mocks, my current plan was:

1. Mock based loading of the yaml config (I see no other way to do and drill down into details of files/secrets)
2. Instead of using bootstrap, write something to do the voluptuous checks

If you have other ideas, I'll move thi to the architecture forum

[balloob]

I think that if you go for 2 we don't need any of the mocks. Just a simple config loader. We can even break out some of the parts in Home Assistant to make them more easily usable inside the check config script.

[balloob]

mock_coro is indeed only necessary for any coroutine that is mocked and does nothing for the others