Bump bthome to 2.12.0

[Ernst79]

Proposed change

Bump bthome to 2.12.0 Changelog bthome v2.12.0
Bluetooth-Devices/bthome-ble@v2.11.3...v2.12.0

• Adding support for acceleration sensor
• Adding support for gyroscope sensor
• Adding support for timestamp sensor
• Fix error when a non-valid button event is send (Shelly BLU BTHome Unexpected error #92758)

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 Shelly BLU BTHome Unexpected error #92758
• This PR is related to issue:
• Link to documentation pull request:

Checklist

• The code change is tested and works locally.
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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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