fix: remove network_mode setting from Nextcloud docker-compose configuration

config/ansible/tasks/servers/services/nextcloud/docker-compose.yml.j2

@@ -7,7 +7,6 @@ services:
     volumes:
       - /mnt/object_storage/services/nextcloud:/mnt/docker-aio-config # This line is not allowed to be changed as otherwise the built-in backup solution will not work
       - /var/run/docker.sock:/var/run/docker.sock:ro # May be changed on macOS, Windows or docker rootless. See the applicable documentation. If adjusting, don't forget to also set 'WATCHTOWER_DOCKER_SOCKET_PATH'!
-    network_mode: bridge # add to the same network as docker run would do
     ports:
       - 8080:8080
     networks: