Add sensors for Sonoff SWV Smart Water Valve status

[benbancroft]

Proposed change

Adds a valve leak and water supply status binary sensors for export to Home Assistant.

This feature was requested as part of zigpy/zha-device-handlers#3298

Additional information

• zha-device-handlers pull request for device quirk: Add quirk for Sonoff SWV Smart Water Valve zha-device-handlers#3340
• Home Assistant core pull request for language strings for sensor: Add ZHA language strings for Sonoff SWV home-assistant/core#124989

Testing

I have tested this with my Sonoff SWV-BSP Smart Water Valve.

[dmulcahey]

If you run script/setup from the root of the checked out project it will set up a venv for you and also install a commit hook w/ pre-commit so that you can catch the lint errors before committing. if you already have a venv activate it and run pre-commit install

[TheJulianJES]

Pre-commit fixes are now also applied automatically as well when pushed to a PR. So, you can just update your local changes from the branch you pushed to.
Still, I'd also recommend running script/setup. The path should be updated for uv after the install, but I remember there being issues with the install script not doing that in the past, so let me know if you need any help with it.