### Description

Add a process_line callback to KubernetesPodOperator 
Like https://github.com/apache/airflow/blob/main/airflow/providers/apache/beam/operators/beam.py#LL304C36-L304C57 the `BeamRunPythonPipelineOperator`, which allows the user to add stateful plugins based on the logging from docker job 

### Use case/motivation

I can add a plugin based on the logging and also allow cleanup on_kill based on the job creation log. 

### Related issues

_No response_

### Are you willing to submit a 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)

istio_enabled = self.is_istio_enabled(pod)
        with _optionally_suppress(reraise=reraise):
            if pod is not None:
                should_delete_pod = (
                    (self.on_finish_action == OnFinishAction.DELETE_POD)
                    or (
                        self.on_finish_action == OnFinishAction.DELETE_SUCCEEDED_POD
                        and pod.status.phase == PodPhase.SUCCEEDED
                    )
                    or (
                        self.on_finish_action == OnFinishAction.DELETE_SUCCEEDED_POD
                        and container_is_succeeded(pod, self.base_container_name)
                    )
                )
                if should_delete_pod and not istio_enabled:
                    self.log.info("Deleting pod: %s", pod.metadata.name)
                    self.pod_manager.delete_pod(pod)
                elif should_delete_pod and istio_enabled:
                    self.log.info("Deleting istio-proxy sidecar inside %s: ", pod.metadata.name)
                    self.kill_istio_sidecar(pod)
                else:
                    self.log.info("Skipping deleting pod: %s", pod.metadata.name)
    def _build_find_pod_label_selector(self, context: Context | None = None, *, exclude_checked=True) -> str: