ci: Fix nginx config for preview environment (#2542)

Author: mtrezza

nginx-uffizzi/nginx.conf

@@ -17,7 +17,7 @@ http {
             proxy_set_header X-Real-IP $remote_addr;
             proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
             proxy_set_header X-NginX-Proxy true;
-            proxy_pass http://localhost:4040/dashboard/;
+            proxy_pass http://localhost:4040;
             proxy_ssl_session_reuse off;
             proxy_set_header Host $http_host;
             proxy_redirect off;
@@ -29,7 +29,7 @@ http {
             proxy_set_header X-Real-IP $remote_addr;
             keepalive_requests 10;
             keepalive_timeout 75s;
-            proxy_pass http://localhost:1337/parse/;
+            proxy_pass http://localhost:1337;
             proxy_http_version 1.1;
         }
     }