Bug 1383229 - disabled universal-selector-005.xht on Win and Linux for frequent failures r=jmaher

Differential Revision: https://phabricator.services.mozilla.com/D22851

--HG--
extra : moz-landing-system : lando

testing/web-platform/meta/css/CSS2/selectors/universal-selector-005.xht.ini

@@ -0,0 +1,4 @@
+[universal-selector-005.xht]
+  disabled:
+    if (os == "linux"): https://bugzilla.mozilla.org/show_bug.cgi?id=1383229
+    if (os == "win"): https://bugzilla.mozilla.org/show_bug.cgi?id=1383229