Increase timeout for waiting for the cleanup of the shared index folder (#98302)

Author: volodk85

x-pack/plugin/searchable-snapshots/src/internalClusterTest/java/org/elasticsearch/xpack/searchablesnapshots/FrozenSearchableSnapshotsIntegTests.java

@@ -60,6 +60,7 @@
 import java.util.List;
 import java.util.Locale;
 import java.util.Map;
+import java.util.concurrent.TimeUnit;
 import java.util.concurrent.atomic.AtomicBoolean;
 
 import static org.elasticsearch.index.IndexSettings.INDEX_SOFT_DELETES_SETTING;
@@ -309,7 +310,7 @@ public void testCreateAndRestorePartialSearchableSnapshot() throws Exception {
         // TODO: fix
         // assertSearchableSnapshotStats(restoredIndexName, true, nonCachedExtensions);
         ensureGreen(restoredIndexName);
-        assertBusy(() -> assertShardFolders(restoredIndexName, true));
+        assertBusy(() -> assertShardFolders(restoredIndexName, true), 30, TimeUnit.SECONDS);
 
         assertThat(
             client().admin()