[5.5.0] - 2023-01-20 Added - Add new backend "ubus" for querying `/bin/ubus`. - tests: Allow ubus-cli mock to load json data for tests. Changed - lan+wan: refactor querying ubus from lan & wan backends. - networks: Change severity of log message during detection of network bridges from "warning" to "debug". It will no longer spam system log during normal operation of foris-controller with message "WARNING:foris_controller_backends.networks:No anonymous section 'br-<bridge_name>' found among network devices.". - lan: Make fetching dhcpv6 leases more resilient to unexpected values.