LibWeb/SVG: SVGScriptElement includes SVGURIReference

Author: https://github.com/jamierocks
Commit: fbb5bc471d
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/666

Userland/Libraries/LibWeb/SVG/SVGScriptElement.cpp

@@ -28,6 +28,7 @@ void SVGScriptElement::initialize(JS::Realm& realm)
 void SVGScriptElement::visit_edges(Cell::Visitor& visitor)
 {
     Base::visit_edges(visitor);
+    SVGURIReferenceMixin::visit_edges(visitor);
     visitor.visit(m_script);
 }