fix: Update load balancing method to ip_hash

Author: 유미라

nginx.conf

@@ -10,7 +10,7 @@ http {
     access_log /var/log/nginx/access.log upstream_log;
 
     upstream socket_nodes {
-        least_conn;
+        ip_hash;
         server server1:3000;
         server server2:3000;
     }