Improve type hints in konnected config flow

[epenet]

Proposed change

SSIA, linked to #124316

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• Dependency upgrade
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• This PR fixes or closes issue: fixes #
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[home-assistant]

Hey there @heythisisnate, mind taking a look at this pull request as it has been labeled with an integration (konnected) you are listed as a code owner for? Thanks!

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[epenet]

I'm pretty sure this was a bug - maybe it should be included in the next beta?