Bug 1769626 [wpt PR 34080] - Update wpt metadata, a=testonly

wpt-pr: 34080
wpt-type: metadata

testing/web-platform/meta/ua-client-hints/useragentdata.https.any.js.ini

@@ -2,7 +2,13 @@
   [tests for navigator.userAgentData]
     expected: FAIL
 
+  [test NavigatorUAData.toJSON() output]
+    expected: FAIL
+
 
 [useragentdata.https.any.html]
   [tests for navigator.userAgentData]
     expected: FAIL
+
+  [test NavigatorUAData.toJSON() output]
+    expected: FAIL