Mark TestStandardTaskRunner::test_read_task_utilization as db test

[Taragolis]

Fix failing main

❯ breeze shell --backend none

root@a2b2d941fc72:/opt/airflow# pytest tests --skip-db-tests tests/task/task_runner/test_standard_task_runner.py

======================================================= FAILURES ========================================================
___________________________________ TestStandardTaskRunner.test_read_task_utilization ___________________________________

self = <tests.task.task_runner.test_standard_task_runner.TestStandardTaskRunner object at 0xffff9b97e460>
mock_init = <MagicMock name='_init_file' id='281472688691328'>
mock_stats = <MagicMock name='gauge' id='281472686772336'>

    @mock.patch("airflow.task.task_runner.standard_task_runner.Stats.gauge")
    @patch("airflow.utils.log.file_task_handler.FileTaskHandler._init_file")
    def test_read_task_utilization(self, mock_init, mock_stats):
        mock_init.return_value = "/tmp/any"
        Job = mock.Mock()
        Job.job_type = None
        Job.task_instance = mock.MagicMock()
        Job.task_instance.task_id = "task_id"
        Job.task_instance.dag_id = "dag_id"
        Job.task_instance.run_as_user = None
        Job.task_instance.command_as_list.return_value = [
            "airflow",
            "tasks",
            "run",
            "test_on_kill",
            "task1",
            "2016-01-01",
        ]
        job_runner = LocalTaskJobRunner(job=Job, task_instance=Job.task_instance)
        task_runner = StandardTaskRunner(job_runner)
>       task_runner.start()

tests/task/task_runner/test_standard_task_runner.py:472: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
airflow/task/task_runner/standard_task_runner.py:55: in start
    self.process = self._start_by_fork()
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

self = <airflow.task.task_runner.standard_task_runner.StandardTaskRunner object at 0xffff7768c640>

    def _start_by_fork(self):
        pid = os.fork()
        if pid:
            self.log.info("Started process %d to run task", pid)
            return psutil.Process(pid)
        else:
            # Start a new process group
            set_new_process_group()
            import signal
    
            signal.signal(signal.SIGINT, signal.SIG_DFL)
            signal.signal(signal.SIGTERM, signal.SIG_DFL)
    
            from airflow import settings
            from airflow.cli.cli_parser import get_parser
            from airflow.sentry import Sentry
    
            if not InternalApiConfig.get_use_internal_api():
                # Force a new SQLAlchemy session. We can't share open DB handles
                # between process. The cli code will re-create this as part of its
                # normal startup
>               settings.engine.pool.dispose()
E               AttributeError: 'NoneType' object has no attribute 'pool'

airflow/task/task_runner/standard_task_runner.py:90: AttributeError

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