[fix] we don't use bind9, add null entry to remove it from old services.yml
[fix] we don't use bind9, add null entry to remove it from old services.yml

YunoHost/yunohost,YunoHost/moulinette-yunohost,YunoHost/yunohost,YunoHost/yunohost,YunoHost/moulinette-yunohost,YunoHost/yunohost,YunoHost/moulinette-yunohost,YunoHost/moulinette-yunohost,YunoHost/moulinette-yunohost