### Body

Add unit test for changes in https://github.com/apache/airflow/pull/17305

### Committer

- [X] I acknowledge that I am a maintainer/committer of the Apache Airflow project.
airflow/jobs/backfill_job.py
:type conf: dictionary
        :param rerun_failed_tasks: flag to whether to
                                   auto rerun the failed task in backfill
        :type rerun_failed_tasks: bool
        :param run_backwards: Whether to process the dates from most to least recent
        :type run_backwards bool
        :param run_at_least_once: If true, always run the DAG at least once even
            if no logical run exists within the time range.
        :type: bool
        :param args:
        :param kwargs:
        """
        self.dag = dag
        self.dag_id = dag.dag_id
        self.bf_start_date = start_date
        self.bf_end_date = end_date
        self.mark_success = mark_success
        self.donot_pickle = donot_pickle
        self.ignore_first_depends_on_past = ignore_first_depends_on_past
        self.ignore_task_deps = ignore_task_deps
        self.pool = pool
        self.delay_on_limit_secs = delay_on_limit_secs
        self.verbose = verbose
        self.conf = conf
        self.rerun_failed_tasks = rerun_failed_tasks
        self.run_backwards = run_backwards
        self.run_at_least_once = run_at_least_once
        super().__init__(*args, **kwargs)
    @provide_session
    def _update_counters(self, ti_status, session=None):