Add Timeout to external/wpt/websockets/opening-handshake/005.html?wss

Unblock importer, https://logs.chromium.org/logs/infra/buildbucket/cr-buildbucket.appspot.com/8887818517361702560/+/steps/Import_changes_from_WPT_to_Chromium/0/stdout

Change-Id: I65011523a4f61cb0fb0734fb0d0289394fa83a7f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2067815Reviewed-by: Robert Ma <robertma@chromium.org>
Commit-Queue: Robert Ma <robertma@chromium.org>
Cr-Commit-Position: refs/heads/master@{#743717}

third_party/blink/web_tests/TestExpectations

@@ -3633,7 +3633,7 @@ crbug.com/751952 [ Win ] editing/selection/modify_extend/extend_by_character.htm
 
 # Websockets
 # Cannot be rebaselined because the output contains a timestamp and a random number.
-crbug.com/803200 external/wpt/websockets/opening-handshake/005.html?wss [ Pass Failure ]
+crbug.com/803200 external/wpt/websockets/opening-handshake/005.html?wss [ Pass Failure Timeout ]
 
 crbug.com/805463 external/wpt/acid/acid3/numbered-tests.html [ Skip ]