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**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 -->


project_id: str | None = None,
        location: str = DEFAULT_DATAFLOW_LOCATION,
        gcp_conn_id: str = "google_cloud_default",
        poll_sleep: int = 10,
        drain_pipeline: bool = False,
        cancel_timeout: int | None = 10 * 60,
        wait_until_finished: bool | None = None,
        **kwargs,
    ) -> None:
        
        warnings.warn(
            f"The `{self.__class__.__name__}` operator is deprecated, "
            "please use `providers.apache.beam.operators.beam.BeamRunPythonPipelineOperator` instead.",
            AirflowProviderDeprecationWarning,
            stacklevel=2,
        )
        super().__init__(**kwargs)
        self.py_file = py_file
        self.job_name = job_name
        self.py_options = py_options or []
        self.dataflow_default_options = dataflow_default_options or {}
        self.options = options or {}
        self.options.setdefault("labels", {}).update(
            {"airflow-version": "v" + version.replace(".", "-").replace("+", "-")}
        )
        self.py_interpreter = py_interpreter
        self.py_requirements = py_requirements
        self.py_system_site_packages = py_system_site_packages
        self.project_id = project_id
        self.location = location