Improve the HomeKit (de)humidifier min/max humidity handling

[stackia]

Breaking change

The PR changes how min/max supported target humidities are handled for the HomeKit (de)humidifier devices.

For a (de)humidifier device that has a min/max humidity other than 0/100:

Before: The number shown on HomeKit UI doesn't represent the actual relative humidity.

After: The number shown on HomeKit UI is just the real relative humidity, as expected. When the slider goes above/below the max/min humidity, we'll set it back to the allowed max/min humidity.

Proposed change

Type of change

• Dependency upgrade
• Bugfix (non-breaking change which fixes an issue)
• New integration (thank you!)
• New feature (which adds functionality to an existing integration)
• Deprecation (breaking change to happen in the future)
• Breaking change (fix/feature causing existing functionality to break)
• Code quality improvements to existing code or addition of tests

Additional information

• This PR fixes or closes issue: fixes For Humidifier, target % in HomeKit differs from actual target %. #84535
• This PR is related to issue:
• Link to documentation pull request:

Checklist

• The code change is tested and works locally.
• Local tests pass. Your PR cannot be merged unless tests pass
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• Tests have been added to verify that the new code works.

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• Documentation added/updated for www.home-assistant.io

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[home-assistant]

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

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[bdraco]

Please update the tests as well

[stackia]

@bdraco sorry, i just fixed

[bdraco]

Tested.

Thanks @stackia