fix: try fixing ipv6 - 7

.docker/web-nginx/nginx.conf

@@ -16,7 +16,7 @@ http {
 
 	index index.php;
 
-	resolver ${RESOLVER} valid=5s ipv6only=on;
+	resolver ${RESOLVER} valid=5s ipv6=on;
 
 	server {
 		listen [::]:80 ipv6only=on;