Added timeout to delete reservation

Author: TetyanaYahodska

compute/cloud-client/src/main/java/compute/reservation/DeleteReservation.java

@@ -57,6 +57,11 @@ public static void deleteReservation(String projectId, String zone, String reser
       Operation response = reservationsClient.deleteAsync(
           deleteReservationRequest).get(5, TimeUnit.MINUTES);
 
+      if (response.getStatus() == Operation.Status.PENDING) {
+        // Wait for server update
+        TimeUnit.MINUTES.sleep(2);
+        System.out.println("Operation.Status = PENDING");
+      }
       if (response.getStatus() == Operation.Status.DONE) {
         System.out.println("Deleted reservation: " + reservationName);
       }