Mark ShowImeOnAppStartWhenLaunchingAppFromFixedOrientationTest#snapshotStartingWindowLayerCoversExactlyOnApp as flaky

Bug: 293096776

Test: N/A
Change-Id: Ic06d217616507802d28cc1e1aa2e8d67447c2bb8
diff --git a/tests/FlickerTests/src/com/android/server/wm/flicker/ime/ShowImeOnAppStartWhenLaunchingAppFromFixedOrientationTest.kt b/tests/FlickerTests/src/com/android/server/wm/flicker/ime/ShowImeOnAppStartWhenLaunchingAppFromFixedOrientationTest.kt
index ea7c7c4..0ee0748 100644
--- a/tests/FlickerTests/src/com/android/server/wm/flicker/ime/ShowImeOnAppStartWhenLaunchingAppFromFixedOrientationTest.kt
+++ b/tests/FlickerTests/src/com/android/server/wm/flicker/ime/ShowImeOnAppStartWhenLaunchingAppFromFixedOrientationTest.kt
@@ -73,7 +73,7 @@
 
     @Presubmit @Test fun imeLayerBecomesVisible() = flicker.imeLayerBecomesVisible()
 
-    @Presubmit
+    @FlakyTest(bugId = 293096776)
     @Test
     fun snapshotStartingWindowLayerCoversExactlyOnApp() {
         flicker.snapshotStartingWindowLayerCoversExactlyOnApp(imeTestApp)