fix: disable nginx body size check (#7803)

* fix: increase nginx client_max_body_size

* fix: entirely disable nginx body size check

k8s/nginx-datatracker.conf

@@ -23,5 +23,6 @@ server {
         proxy_set_header X-Forwarded-For $${keepempty}proxy_add_x_forwarded_for;
         proxy_set_header X-Real-IP $${keepempty}remote_addr;
         proxy_pass http://localhost:8000;
+        client_max_body_size 0;  # disable size check
     }
 }