Update web-platform-tests to revision 50ff4f970fd8592a9f436d4e86e7d572de143260

tests/wpt/web-platform-tests/svg/linking/scripted/a-download-click.svg

@@ -22,7 +22,7 @@
             const link = frame.contentDocument.querySelector("#blob-url");
             link.href.baseVal = URL.createObjectURL(blob);
 
-            link.click();
+            link.dispatchEvent(new Event('click'));
 
             t.step_timeout(() => t.done(), 1000);
         }));
@@ -30,4 +30,4 @@
         root.appendChild(frame);
     }, "Clicking on an <a> element with a download attribute must not throw an exception");
   ]]></script>
-</svg>
+</svg>