Since Home Assistant 2021.6, HA requires custom integrations to have a version key in the manifest.json:
2021-05-31 20:55:51 ERROR (MainThread) [homeassistant.loader] No 'version' key in the manifest file for custom integration 'yeelight_v2'. As of Home Assistant 2021.6, this integration will no longer be loaded. Please report this to the maintainer of 'yeelight_v2'
Since Home Assistant 2021.6, HA requires custom integrations to have a version key in the manifest.json:
2021-05-31 20:55:51 ERROR (MainThread) [homeassistant.loader] No 'version' key in the manifest file for custom integration 'yeelight_v2'. As of Home Assistant 2021.6, this integration will no longer be loaded. Please report this to the maintainer of 'yeelight_v2'
This PR fixes that