fix: try fixing ipv6

.docker/web-nginx/nginx.conf

@@ -16,11 +16,10 @@ http {
 
 	index index.php;
 
-	resolver ${RESOLVER} valid=5s;
+	resolver ${RESOLVER} valid=5s ipv6=on;
 
 	server {
-		listen 80;
-		listen [::]:80;
+		listen [::]:80 ipv6only=on;
 		root ${APP_WEB_ROOT};
 
 		location ${APP_BASE}/cache {