Migrate `homeassistant_hardware` to use `FirmwareInfo` instead of just the...

Migrate `homeassistant_hardware` to use `FirmwareInfo` instead of just the application type (#138874)

* Migrate `self._probed_firmware_type` to `self._probed_firmware_info`

* Migrate from `firmware_type` to the full `firmware_info`

* Implement `probe_silabs_firmware_type` via `probe_silabs_firmware_info`

* Fix unit tests

* Increase coverage

* Bring test coverage to 100%

* Simplify test per review comment