### Apache Airflow version

2.6.3

### What happened

When the condition in ```ShortCircuitOperator``` is truthy it is returned at
https://github.com/apache/airflow/blob/a2ae2265ce960d65bc3c4bf805ee77954a1f895c/airflow/operators/python.py#L252
but when it is falsy, the function falls through without returning anything.

If ```multiple_outputs``` is set ```true``` (with for example ```@task.short_circuit(multiple_outputs=True```) ```_handle_output``` of
```DecoratedOperator``` at
https://github.com/apache/airflow/blob/a2ae2265ce960d65bc3c4bf805ee77954a1f895c/airflow/decorators/base.py#L242
does not test for None and raises at
https://github.com/apache/airflow/blob/a2ae2265ce960d65bc3c4bf805ee77954a1f895c/airflow/decorators/base.py#L255
This makes it impossible to pass a falsy value (i.e. an empty dictionary) so ```ShortCircuitOperator``` is unusable with ```multiple_outputs=true```


### What you think should happen instead

Probably the ```xcom_push``` should not be attempted with ```None```, or possibly the condition should be returned by ```ShortCircuitOperator``` even if it is falsy

### How to reproduce

```python
@task.short_circuit(multiple_outputs=True)
def test():
  return {}
```

### Operating System

Ubuntu 22.04.2 LTS

### Versions of Apache Airflow Providers

_No response_

### Deployment

Official Apache Airflow Helm Chart

### Deployment details

_No response_

### Anything else

_No response_

### Are you willing to submit PR?

- [ ] Yes I am willing to submit a PR!

### Code of Conduct

- [X] I agree to follow this project's [Code of Conduct](https://github.com/apache/airflow/blob/main/CODE_OF_CONDUCT.md)

}
    def test_mapped_xcom_push_skipped_tasks(self, session):
        with self.dag:
            @task_group
            def group(x):
                short_op_push_xcom = ShortCircuitOperator(
                    task_id="push_xcom_from_shortcircuit",
                    python_callable=lambda arg: arg % 2 == 0,
                    op_kwargs={"arg": x},
                )
                empty_task = EmptyOperator(task_id="empty_task")
                short_op_push_xcom >> empty_task
            group.expand(x=[0, 1])
        dr = self.create_dag_run()
        decision = dr.task_instance_scheduling_decisions(session=session)
        for ti in decision.schedulable_tis:
            ti.run()
        
        tis = dr.get_task_instances()
        assert (
            tis[0].xcom_pull(task_ids="group.push_xcom_from_shortcircuit", key="return_value", map_indexes=0)
            is True
        )
        assert (
            tis[0].xcom_pull(task_ids="group.push_xcom_from_shortcircuit", key="skipmixin_key", map_indexes=0)
            is None
        )
        assert tis[0].xcom_pull(
            task_ids="group.push_xcom_from_shortcircuit", key="skipmixin_key", map_indexes=1
        ) == {"skipped": ["group.empty_task"]}