RESTRICT AUTOMERGE Ignore testShowHideInSameFrame on T QPR

ImeOpenCloseStressTest#testShowHideInSameFrame() has started failing
without any obvious culprit. Since T QPR is closed for fixes, disabling the test.

Bug: 268556567
Fixes: 280066996
Test: m InputMethodStressTest
Change-Id: Ibcd01e0d722f5ebb846e75f72ba4e770f7030d32
(cherry picked from commit 80096c5dc0)

tests/InputMethodStressTest/src/com/android/inputmethod/stresstest/ImeOpenCloseStressTest.java

@@ -42,6 +42,7 @@ import androidx.test.ext.junit.runners.AndroidJUnit4;
 import androidx.test.platform.app.InstrumentationRegistry;
 
 import org.junit.Before;
+import org.junit.Ignore;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -123,6 +124,7 @@ public final class ImeOpenCloseStressTest {
         }
     }
 
+    @Ignore("b/268556567")
     @Test
     public void testShowHideInSameFrame() {
         TestActivity activity = TestActivity.start();