@Override
        public Task createNewTask(TaskCallbackContext context) {
          return new DeprecatedContainerCloudSyncTask(accountService, storeConfig.storeContainerDeletionRetentionDays,
              cloudDestination, vcrMetrics);
        }
Register {@link DeprecatedContainerCloudSyncTask}s to sync deleted container information from account service to
VCR.

@param engine the {@link StateMachineEngine} to register the task state model.
ambry-cloud/src/main/java/com/github/ambry/cloud/HelixVcrClusterParticipant.java