I tested the PR mentioned above and don't believe this will work. Reason is, is that https://github.com/vyos/vyos-1x/blob/current/src/systemd/isc-dhcp-server.service runs dhcpd as user: nobody and nobody is not in the sudo group, as far as i can tell. This is the error message im seeing.

bash
May 19 21:37:45 vyos sudo[6141]:   nobody : user NOT in sudoers ; TTY=unknown ; PWD=/ ; USER=root ; COMMAND=/usr/bin/vyos-hostsd-client