**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
run_type=DagRunType.SCHEDULED,
            execution_date=date,
            state=State.RUNNING,
        )
        date = dag.following_schedule(date)
        dr2 = dag.create_dagrun(
            run_type=DagRunType.SCHEDULED,
            execution_date=date,
            state=State.RUNNING,
        )
        date = dag.following_schedule(date)
        dr3 = dag.create_dagrun(
            run_type=DagRunType.SCHEDULED,
            execution_date=date,
            state=State.RUNNING,
        )
        ti1 = TaskInstance(task1, dr1.execution_date)
        ti2 = TaskInstance(task1, dr2.execution_date)
        ti3 = TaskInstance(task1, dr3.execution_date)
        ti1.state = State.RUNNING
        ti2.state = State.RUNNING
        ti3.state = State.RUNNING
        session.merge(ti1)
        session.merge(ti2)
        session.merge(ti3)
        session.flush()
        res = scheduler._executable_task_instances_to_queued(max_tis=100, session=session)
        assert 0 == len(res)
        session.rollback()
    def test_enqueue_task_instances_with_queued_state(self):