Add Sonoff SNZB-SWV2C v1.0.9

[yezi289]

OTA file

snzb-swv2c_v1.0.9.ota.zip

Release notes

This updates the Sonoff SNZB-SWV2C to firmware version 1.0.9.

Changes

• Add support for setting the water flow unit (litre, US gallon, or imperial gallon)

How to handle existing images of the same type

Keep all (standard)

Optional metadata

No response

Checklist

• The OTA image provided is in a supported format (e.g., .zigbee, .ota, or a ZIP containing one of these)
• I have filled out the release notes to the best of my ability
• The OTA image is tested and verified to work on a physical device

Additional information

Tested OTA upgrade successfully on a physical SONOFF SNZB-SWV2C device. The device remained joined to ZHA and reports normally after the update.

[zigpy-bot]

✅ Successfully processed your OTA submission! A pull request has been created with your changes:

• Add Sonoff SNZB-SWV2C v1.0.9 #234

[TheJulianJES]

Thanks! There's generally no need to copy/paste anything from other PRs into "optional metadata". It's all automatically read from the OTA file and populated in the PR.

(The optional metadata section is really only needed if there's (accidentally) two devices that request the same firmware "image type", even though they should use different ones. In that case, extra model information can be added there to match by model name as well (and not just by manufacturer ID + image type, which is always the standard). Most of the times, you can simply leave it empty. Basically, only the OTA link or OTA file and some release notes are enough.)

I've edited the submissions slightly now and will test/merge them next.