Added timeout

Author: TetyanaYahodska

compute/cloud-client/src/test/java/compute/disks/ConsistencyGroupIT.java

@@ -84,6 +84,7 @@ public static void setUp() throws Exception {
   public static void cleanUp()
           throws IOException, ExecutionException, InterruptedException, TimeoutException {
     StopDiskReplication.stopDiskAsyncReplication(PROJECT_ID, REGION, DISK_NAME);
+    TimeUnit.SECONDS.sleep(30);
     StopDiskReplication.stopDiskAsyncReplication(
             PROJECT_ID, REGION_SECONDARY, SECONDARY_REGIONAL_DISK);