web: Make embed_unexpected_string not setAttribute on Chromium 143+

Author: danielhjacobs

web/packages/selfhosted/test/polyfill/embed_unexpected_string/index.html

@@ -10,7 +10,7 @@
             <embed
                 type="application/x-shockwave-flash"
                 src="/test_assets/example.swf"
-                "YeahWhyDoingThis"
+                =
                 width="550"
                 height="400"
                 quality="high"