LibWeb: Make NodeList GC-allocated

Author: https://github.com/awesomekling
Commit: 48e0066371
Pull-request: https://github.com/SerenityOS/serenity/pull/14816
Reviewed-by: https://github.com/ADKaster
Reviewed-by: https://github.com/linusg ✅

Userland/Libraries/LibWeb/DOM/ParentNode.h

@@ -24,7 +24,7 @@ public:
     u32 child_element_count() const;
 
     ExceptionOr<JS::GCPtr<Element>> query_selector(StringView);
-    ExceptionOr<NonnullRefPtr<NodeList>> query_selector_all(StringView);
+    ExceptionOr<JS::NonnullGCPtr<NodeList>> query_selector_all(StringView);
 
     NonnullRefPtr<HTMLCollection> children();