put nzbhydra2 on web network

pi/nzbhydra2/docker-compose.yml

@@ -17,6 +17,13 @@ services:
       - "traefik.http.services.nzbhydra2.loadbalancer.server.port=5076"
       - "traefik.http.routers.nzbhydra2.middlewares="
  
+    networks:
+      - web
+
+networks:
+  web:
+    external: true
+    
 volumes:
   nzbhydra2_data:
     driver: local