IPv6 Fix

If is IPv6 enabled, then localhost is resolved as [::1]

2025/06/15 19:24:19 [error] 431#431: *8575 connect() failed (111: Connection refused) while connecting to upstream, client: 172.30.32.2, server: netalertx, request: "GET / HTTP/1.1", upstream: "http://[::1]:20211/", host: "http://homeassistant.local/", referrer: "https:/homeassistant.local:48123/db21ed7f_netalertx_fa"

netalertx/rootfs/etc/nginx/http.d/ingress.conf

@@ -6,7 +6,7 @@ server {
     include /etc/nginx/includes/proxy_params.conf;
 
     location / {
-        proxy_pass http://localhost:20211/;
+        proxy_pass http://127.0.0.1:20211/;
         rewrite ^%%ingress_entry%%/?(.*)$ /$1 break;
     	sub_filter_once off;
 	sub_filter_types *;