Update DNS config to use dedicated Adguard network

docker-compose.yml

@@ -9,12 +9,16 @@ services:
       - PGID=1000
       - TZ=Asia/Jerusalem
     volumes:
-      - ./config:/config
+      - ./config:/config:z
     ports:
       - 9283:80
     restart: unless-stopped
     networks:
       - network
+      - dns_network
+    dns:
+      - 150.201.34.6
+
     labels:
       - "traefik.enable=true"
       - "traefik.docker.network=grocy_network"
@@ -26,3 +30,5 @@ services:
 networks:
   network:
     driver: bridge
+  dns_network:
+    external: true