<!--

Welcome to Apache Airflow!  For a smooth issue process, try to answer the following questions.
Don't worry if they're not all applicable; just try to include what you can :-)

If you need to include code snippets or logs, please put them in fenced code
blocks.  If they're super-long, please use the details tag like
<details><summary>super-long log</summary> lots of stuff </details>

Please delete these comment blocks before submitting the issue.

-->

**Description**

Related to the discussion here: https://github.com/apache/airflow/pull/8553#discussion_r416136954

Allow user to define expected terminal state. e.g. `JOB_STATE_CANCELLED` could be not treated as failure but expected terminal state.


<!-- A short description of your feature -->


"sql",
                "query",
                TEST_SQL_QUERY,
                "--project=test-project",
                "--format=value(job.id)",
                "--job-name=test-sql-job-name",
                "--region=custom-location",
                "--bigquery-project=test-project",
                "--bigquery-dataset=test-dataset",
                "--bigquery-table=beam_output",
                "--bigquery-write-disposition=write-truncate",
            ],
            capture_output=True,
        )
        mock_controller.assert_called_once_with(
            dataflow=mock_get_conn.return_value,
            job_id=TEST_JOB_ID,
            location=TEST_LOCATION,
            poll_sleep=10,
            project_number=TEST_PROJECT,
            num_retries=5,
            drain_pipeline=False,
            wait_until_finished=None,
        )
        mock_controller.return_value.wait_for_done.assert_called_once()
        assert result == test_job
    @mock.patch(DATAFLOW_STRING.format("DataflowHook.get_conn"))
    @mock.patch(DATAFLOW_STRING.format("DataflowHook.provide_authorized_gcloud"))
    @mock.patch(DATAFLOW_STRING.format("subprocess.run"))
    def test_start_sql_job(self, mock_run, mock_provide_authorized_gcloud, mock_get_conn):