### Body

Currently when you use multiple-outputs in decorator and it gets None value, it crashes.

As explained in https://github.com/apache/airflow/issues/32553 and workaround for ShortCircuitOperator has been implemented here:  https://github.com/apache/airflow/pull/32569 

But a more complete fix for multiple-outputs handling None is needed. 

### Committer

- [X] I acknowledge that I am a maintainer/committer of the Apache Airflow project.
return "example"
        @dag.task()
        def up2() -> None:
            raise AirflowSkipException()
        @dag.task(trigger_rule=TriggerRule.NONE_FAILED_MIN_ONE_SUCCESS)
        def down(a, b):
            nonlocal result
            result = f"{a!r} {b!r}"
        down(up1(), up2())
    dr: DagRun = dag_maker.create_dagrun()
    decision = dr.task_instance_scheduling_decisions(session=session)
    assert len(decision.schedulable_tis) == 2  
    for ti in decision.schedulable_tis:
        ti.run(session=session)
    decision = dr.task_instance_scheduling_decisions(session=session)
    assert len(decision.schedulable_tis) == 1  
    decision.schedulable_tis[0].run(session=session)
    assert result == "'example' None"
@pytest.mark.parametrize("multiple_outputs", [True, False])
def test_multiple_outputs_produces_none_xcom_when_task_is_skipped(dag_maker, session, multiple_outputs):
    from airflow.exceptions import AirflowSkipException
    from airflow.utils.trigger_rule import TriggerRule
    result = None
    with dag_maker(session=session) as dag:
        @dag.task()
        def up1() -> str: