Disable flaking LazyListPinnableContainerTest test

Bug: 268720713
Change-Id: I8231ab6dca1f4b45c6a706833cee7b4552f08682
Test: None
diff --git a/tv/tv-foundation/src/androidTest/java/androidx/tv/foundation/lazy/list/LazyListPinnableContainerTest.kt b/tv/tv-foundation/src/androidTest/java/androidx/tv/foundation/lazy/list/LazyListPinnableContainerTest.kt
index 98ba1e9..53c3a19 100644
--- a/tv/tv-foundation/src/androidTest/java/androidx/tv/foundation/lazy/list/LazyListPinnableContainerTest.kt
+++ b/tv/tv-foundation/src/androidTest/java/androidx/tv/foundation/lazy/list/LazyListPinnableContainerTest.kt
@@ -38,6 +38,7 @@
 import com.google.common.truth.Truth.assertThat
 import kotlinx.coroutines.runBlocking
 import org.junit.Before
+import org.junit.Ignore
 import org.junit.Rule
 import org.junit.Test
 
@@ -250,6 +251,7 @@
             .assertIsNotPlaced()
     }
 
+    @Ignore // b/268720713
     @Test
     fun pinnedItemIsStillPinnedWhenReorderedAndNotVisibleAnymore() {
         val state = TvLazyListState()