### 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)

exception_message = (
            "Specifying resources for the launched pod with 'resources' is deprecated. "
            "Use 'container_resources' instead."
        )
        with pytest.raises(AirflowException, match=exception_message):
            resources = k8s.V1ResourceRequirements(
                requests={"memory": "64Mi", "cpu": "250m", "ephemeral-storage": "1Gi"},
                limits={"memory": "64Mi", "cpu": 0.25, "nvidia.com/gpu": None, "ephemeral-storage": "2Gi"},
            )
            KubernetesPodOperator(
                namespace="default",
                image="ubuntu:16.04",
                cmds=["bash", "-cx"],
                arguments=["echo 10"],
                labels=self.labels,
                task_id=str(uuid4()),
                in_cluster=False,
                do_xcom_push=False,
                resources=resources,
            )
    def test_changing_base_container_name_with_get_logs(self):