### 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)

warnings.warn("get_hook is deprecated. Please use hook instead.", DeprecationWarning, stacklevel=2)
        return self.hook
    @cached_property
    def client(self) -> CoreV1Api:
        return self.hook.core_v1_client
    def find_pod(self, namespace: str, context: Context, *, exclude_checked: bool = True) -> k8s.V1Pod | None:
        """Returns an already-running pod for this task instance if one exists."""
        label_selector = self._build_find_pod_label_selector(context, exclude_checked=exclude_checked)
        pod_list = self.client.list_namespaced_pod(
            namespace=namespace,
            label_selector=label_selector,
        ).items
        pod = None
        num_pods = len(pod_list)
        if num_pods > 1:
            raise AirflowException(f"More than one pod running with labels {label_selector}")
        elif num_pods == 1:
            pod = pod_list[0]
            self.log.info("Found matching pod %s with labels %s", pod.metadata.name, pod.metadata.labels)
            self.log.info("`try_number` of task_instance: %s", context["ti"].try_number)
            self.log.info("`try_number` of pod: %s", pod.metadata.labels["try_number"])
        return pod
    def get_or_create_pod(self, pod_request_obj: k8s.V1Pod, context: Context) -> k8s.V1Pod: