**Apache Airflow version**:

1.10.12

**What happened**:

I created dag with dagrun_timeout=2 minutes. 

After 2 minutes dagrun is marked as failed and the next one is started, but task keeps going.

**What you expected to happen**:

Task is killed with dag run as it is done when you mark dagrun failed manually.

**How to reproduce it**:
```
dag = DAG(dag_id='platform.airflow-test',
          description='',
          schedule_interval="0 0 * * *",
          start_date=datetime(2020, 7, 1),
          max_active_runs=1,
          catchup=True,
          dagrun_timeout=timedelta(minutes=2))

run_this = BashOperator(
    task_id='run_after_loop',
    bash_command=' for((i=1;i<=600;i+=1)); do echo "Welcome $i times"; sleep 1;  done',
    dag=dag,
)
```
tests/jobs/test_scheduler_job.py
session.commit()
        scheduler_job._change_state_for_tasks_failed_to_execute()  
        ti.refresh_from_db()
        assert State.SCHEDULED == ti.state
        
        session.query(TaskInstance).delete()
        session.commit()
        ti.state = State.RUNNING
        session.merge(ti)
        session.commit()
        scheduler_job._change_state_for_tasks_failed_to_execute()  
        ti.refresh_from_db()
        assert State.RUNNING == ti.state
    def test_adopt_or_reset_orphaned_tasks(self):
        session = settings.Session()
        dag = DAG(
            'test_execute_helper_reset_orphaned_tasks',
            start_date=DEFAULT_DATE,
            default_args={'owner': 'owner1'},
        )
        with dag:
            op1 = DummyOperator(task_id='op1')
        dag = SerializedDAG.from_dict(SerializedDAG.to_dict(dag))
        dag.clear()
        dr = dag.create_dagrun(
            run_type=DagRunType.SCHEDULED,
            state=State.RUNNING,
            execution_date=DEFAULT_DATE,
            start_date=DEFAULT_DATE,
            session=session,