LibWeb: Add calls to JS_{DECLARE,DEFINE}_ALLOCATOR()

Author: https://github.com/mattco98
Commit: 31341b280a
Pull-request: https://github.com/SerenityOS/serenity/pull/23878
Issue: https://github.com/SerenityOS/serenity/issues/23805
Reviewed-by: https://github.com/awesomekling

Userland/Libraries/LibWeb/Layout/SVGClipBox.cpp

@@ -10,6 +10,8 @@
 
 namespace Web::Layout {
 
+JS_DEFINE_ALLOCATOR(SVGClipBox);
+
 SVGClipBox::SVGClipBox(DOM::Document& document, SVG::SVGClipPathElement& element, NonnullRefPtr<CSS::StyleProperties> properties)
     : SVGBox(document, element, properties)
 {