* Replace `FirmwareGuess` with `FirmwareInfo` with owner tracking
* Fix up config flow
* Account for OTBR addon existing independent of integration
* Fix remaining unit tests
* Add some tests for ownership
* Unit test `get_zha_firmware_info`
* ZHA `homeassistant_hardware` platform
* OTBR `homeassistant_hardware` platform
* Rework imports
* Fix unit tests
* Add OTBR unit tests
* Add hassfest exemption for `homeassistant_hardware` and `otbr`
* Invert registration to decouple the hardware integration
* Revert "Add hassfest exemption for `homeassistant_hardware` and `otbr`"
This reverts commit c8c6e7044f.
* Fix circular imports
* Fix unit tests
* Address review comments
* Simplify API a little
* Fix `| None` mypy issues
* Remove the `unregister_firmware_info_provider` API
* 100% coverage
* Add `HardwareInfoDispatcher.register_firmware_info_callback`
* Unit test `register_firmware_info_callback` (zha)
* Unit test `register_firmware_info_callback` (otbr)
* Update existing hardware helper tests to use the new function
* Add `async_` prefix to helper function names
* Move OTBR implementation to a separate PR
* Update ZHA diagnostics snapshot
* Switch from `dict.setdefault` to `defaultdict`
* Add some error handling to `iter_firmware_info` and increase test coverage
* Oops