test: mark wpt/test-user-timing test flaky

- The RH team had a team day looking at helping move the CI closer to green. This is one of the flaky tests with the most reported failures and has been open since October. Marking flaky. Signed-off-by: Michael Dawson <[email protected]> PR-URL: #41203 Reviewed-By: Luigi Pinca <[email protected]> Reviewed-By: James M Snell <[email protected]> Reviewed-By: Adrian Estrada <[email protected]>

Author: mhdawson

test/wpt/wpt.status

@@ -5,6 +5,8 @@ prefix wpt
 # sample-test : PASS,FLAKY
 
 [true] # This section applies to all platforms
+# https://github.com/nodejs/node/issues/40449
+test-user-timing: PASS,FLAKY
 
 [$system==win32]