### Apache Airflow version

2.5.2

### What happened

Not sure if this is a feature not a bug, but I can use KubernetesPodOperator fine without setting a kubernetes_conn_id.
For example:
```
start = KubernetesPodOperator(
        namespace="mynamespace",
        cluster_context="mycontext",
        security_context={ 'runAsUser': 1000 },
        name="hello",
        image="busybox",
        image_pull_secrets=[k8s.V1LocalObjectReference('prodregistry')],
        cmds=["sh", "-cx"],
        arguments=["echo Start"],
        task_id="Start",
        in_cluster=False,
        is_delete_operator_pod=True,
        config_file="/home/airflow/.kube/config",
    )
```

But if I add deferrable=True to this it won't work. It seems to require an explicit kubernetes_conn_id (which we don't configure).

Is not possible to the deferrable version to work as the non deferrable one?

### What you think should happen instead

I hoped that kpo deferrable would work the same as non deferrable.

### How to reproduce

Use KPO with deferrable=True but no kubernetes_conn_id setting

### Operating System

Debian 11

### 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)

"""If we aren't deleting pods mark "checked" if the task completes (successful or otherwise)"""
        dag = DAG("hello2", start_date=pendulum.now())
        k = KubernetesPodOperator(
            task_id="task",
            is_delete_operator_pod=False,
            dag=dag,
        )
        remote_pod_mock = MagicMock()
        remote_pod_mock.status.phase = "Failed" if should_fail else "Succeeded"
        self.await_pod_mock.return_value = remote_pod_mock
        context = create_context(k, persist_to_db=True)
        if should_fail:
            with pytest.raises(AirflowException):
                k.execute(context=context)
        else:
            k.execute(context=context)
        mock_patch_already_checked.assert_called_once()
        mock_delete_pod.assert_not_called()
    @patch(HOOK_CLASS, new=MagicMock)
    def test_patch_already_checked(self):
        """Make sure we patch the pods with the right label"""
        k = KubernetesPodOperator(task_id="task")
        pod = k.build_pod_request_obj()
        k.patch_already_checked(pod)
        k.client.patch_namespaced_pod.assert_called_once_with(
            name=pod.metadata.name,
            namespace=pod.metadata.namespace,
            body={"metadata": {"labels": {"already_checked": "True"}}},
        )
    def test_task_id_as_name(self):