wiki(host): move to new network and internal hostname

resources/chaosknoten/wiki/nginx/wiki.hamburg.ccc.de.conf

@@ -7,7 +7,7 @@ server {
     # $remote_port to the client address and client port, when using proxy
     # protocol.
     # First set our proxy protocol proxy as trusted.
-    set_real_ip_from 172.31.17.140;
+    set_real_ip_from 2a00:14b0:4200:3000:125::1;
     # Then tell the realip_module to get the addreses from the proxy protocol
     # header.
     real_ip_header proxy_protocol;