### 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)

containing only [a-z0-9.-]).
    :param random_name_suffix: if True, will generate a random suffix.
    :param cmds: entrypoint of the container. (templated)
        The docker images's entrypoint is used if this is not provided.
    :param arguments: arguments of the entrypoint. (templated)
        The docker image's CMD is used if this is not provided.
    :param ports: ports for the launched pod.
    :param volume_mounts: volumeMounts for the launched pod.
    :param volumes: volumes for the launched pod. Includes ConfigMaps and PersistentVolumes.
    :param env_vars: Environment variables initialized in the container. (templated)
    :param env_from: (Optional) List of sources to populate environment variables in the container.
    :param secrets: Kubernetes secrets to inject in the container.
        They can be exposed as environment vars or files in a volume.
    :param in_cluster: run kubernetes client with in_cluster configuration.
    :param cluster_context: context that points to kubernetes cluster.
        Ignored when in_cluster is True. If None, current-context is used.
    :param reattach_on_restart: if the worker dies while the pod is running, reattach and monitor
        during the next try. If False, always create a new pod for each try.
    :param labels: labels to apply to the Pod. (templated)
    :param startup_timeout_seconds: timeout in seconds to startup the pod.
    :param get_logs: get the stdout of the base container as logs of the tasks.
    :param image_pull_policy: Specify a policy to cache or always pull an image.
    :param annotations: non-identifying metadata you can attach to the Pod.
        Can be a large range of data, and can include characters
        that are not permitted by labels.
    :param container_resources: resources for the launched pod. (templated)
    :param affinity: affinity scheduling rules for the launched pod.
    :param config_file: The path to the Kubernetes config file. (templated)
        If not specified, default value is ``~/.kube/config``
    :param node_selector: A dict containing a group of scheduling rules.