PfSense acme certificates timeout fix

Add the following properties to <webgui> in /conf/config.xml file. If you add 600000 ms then it means 10 minutes.

<webgui>
    ...
    <connection_timeout>60000</connection_timeout>
    <server_timeout>60000</server_timeout>
</webgui>

In pfsense, the nginx conf file is at /usr/local/etc/nginx/nginx.conf

 keepalive_timeout  600;
  
    location / {
      root   /usr/local/www/nginx;
      index  index.html index.htm;
      proxy_read_timeout 3600;
    }