Align config flow type hints to scaffold

[davet2001]

Breaking change

Proposed change

There is a mixture of use of type hints for config flows.

1. async def async_step_xxx(self, user_input: ConfigType | None = None) -> FlowResult
2. async def async_step_xxx(self, user_input: dict[str, Any] | None = None) -> FlowResult

I see examples of both used but 2 is the most common and in the scaffold script.

So this PR is to align them all to 2.

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• Dependency upgrade
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[davet2001]

@MartinHjelmare You recently bounced a PR for using 1. So I assume 2 is preferred. Since there are mixed opinions, please can you confirm, and do you know of anything definitive stating the reason/decision?

[MartinHjelmare]

Yes, 2. is preferred. Thanks!

[MartinHjelmare]

Thanks!