fix s3 proxy: forward host header for signature validation

docker/nginx/conf.d/s3.hantim.net.conf

@@ -28,5 +28,8 @@ server {
 
     location / {
         proxy_pass http://garage:3900;
+        proxy_set_header Host $host;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
     }
 }