added Docker host in case TCP is used instead of Unix socket

docker-compose.yml

@@ -10,6 +10,8 @@ services:
       - GUNICORN_WORKERS=2
       - GUNICORN_LOGLEVEL=INFO
       - OFFLINE_MODE=False
+    extra_hosts:
+      - host.docker.internal:host-gateway
     labels:
       - traefik.enable=${TRAEFIK_ENABLED}
       - traefik.docker.network=traefik