[iOS] http/tests/appcache/fail-on-update.html is a flaky timeout.

https://bugs.webkit.org/show_bug.cgi?id=227891

Unreviewed test gardening.

* platform/ios-wk2/TestExpectations:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@283222 268f45cc-cd09-0410-ab3c-d52691b4dbfc

Author: [email protected]

LayoutTests/ChangeLog

@@ -1,3 +1,12 @@
+2021-09-29  Ayumi Kojima  <[email protected]>
+
+        [iOS] http/tests/appcache/fail-on-update.html is a flaky timeout.
+        https://bugs.webkit.org/show_bug.cgi?id=227891
+
+        Unreviewed test gardening.
+
+        * platform/ios-wk2/TestExpectations: 
+
 2021-09-29  Eric Carlson  <[email protected]>
 
         [Cocoa] Support in-band chapter tracks

LayoutTests/platform/ios-wk2/TestExpectations

@@ -1072,7 +1072,7 @@ webkit.org/b/153503 http/tests/appcache/404-resource-with-slow-main-resource.py
 # Uses WK1 TestRunner.setUseDeferredFramLoading
 http/tests/appcache/load-from-appcache-defer-resume-crash.html [ Skip ]
 
-webkit.org/b/227891 http/tests/appcache/fail-on-update.html [ DumpJSConsoleLogInStdErr Slow ]
+webkit.org/b/227891 http/tests/appcache/fail-on-update.html [ Pass Timeout DumpJSConsoleLogInStdErr ]
 
 webkit.org/b/225665 http/tests/appcache/fail-on-update-2.html [ DumpJSConsoleLogInStdErr Slow ]