Update to systemd 247.9 from 247.3. This includes a fix which addresses systemd-resolved resolving issues. This might help DNS resolving issues we see in Home Assistant OS. See also: https://github.com/systemd/systemd/issues/18917
* Update buildroot to 2021.02.6 * Renew buildroot-patches This makes sure that docker-proxy gets bumped to the latest Docker version as well.