* fix checking interface for multiple gateways
* fix black
* setup lock for shared multicast listener
* fix black
* bump motionblinds to 0.6.7
* compensate for extra Lock_key
* unregister gateway when unloading
* unsubscribe stop listener
* fix black
* only unsubscribe listener on last gateway remove
* catch OSError for invalid interfaces
* test coverage
* make stop listen on last config entry more robust
* also check ConfigEntryState
* fix black