public void cancelRenew() {
    if (this.renewTaskFuture != null) {
      this.renewTaskFuture.cancel(true);
      LOG.info("blocker released, blocker {} of {}", blockerId(), tableIdentifier);
      this.renewTaskFuture = null;
    }
  }
Renewable {@link Blocker} implementation. This Blocker has expiration time, after which it will
be invalid. After blocked, this blocker will renew periodically.
amoro-format-iceberg/src/main/java/org/apache/amoro/table/blocker/RenewableBlocker.java