**Apache Airflow version**: 2.x including main

**What happened**:

I am using an `execution_date_fn` in an `ExternalTaskSensor` that also sets `allowed_states=['success']` and `failed_states=['failed']`. When one of the N upstream tasks fails, the sensor will hang forever in the `poke` method because there is a bug in checking for failed_states.

**What you expected to happen**:

I would expect the `ExternalTaskSensor` to fail.

I think this is due to a bug in the `poke` method where it should check if `count_failed > 0` as opposed to checking `count_failed == len(dttm_filter)`. I've created a fix locally that works for my case and have submitted a PR #16205 for it as reference.

**How to reproduce it**:

Create any `ExternalTaskSensor` that checks for `failed_states` and have one of the external DAGs tasks fail while others succeed.

E.g.
```
ExternalTaskSensor(
        task_id='check_external_dag',                                                     
        external_dag_id='external_dag',                                                               
        external_task_id=None,                              
        execution_date_fn=dependent_date_fn,
        allowed_states=['success'],
        failed_states=['failed'],                                                                     
        check_existence=True)
```

**kwargs,
    ):
        super().__init__(**kwargs)
        self.allowed_states = list(allowed_states) if allowed_states else [State.SUCCESS]
        self.failed_states = list(failed_states) if failed_states else []
        total_states = set(self.allowed_states + self.failed_states)
        if set(self.failed_states).intersection(set(self.allowed_states)):
            raise AirflowException(
                f"Duplicate values provided as allowed "
                f"`{self.allowed_states}` and failed states `{self.failed_states}`"
            )
        if external_task_id is not None and external_task_ids is not None:
            raise ValueError(
                "Only one of `external_task_id` or `external_task_ids` may "
                "be provided to ExternalTaskSensor; not both."
            )
        if external_task_id is not None:
            external_task_ids = [external_task_id]
        if external_task_group_id and external_task_ids:
            raise ValueError(
                "Values for `external_task_group_id` and `external_task_id` or `external_task_ids` "
                "can't be set at the same time"
            )
        if external_task_ids or external_task_group_id:
            if not total_states <= set(State.task_states):
                raise ValueError(
                    f"Valid values for `allowed_states` and `failed_states` "
                    f"when `external_task_id` or `external_task_ids` or `external_task_group_id` "
                    f"is not `None`: {State.task_states}"
                )