Fix deprecation warning on example execution (#17522)

Fix for the deprecation warning when executing the command:
```bash
$ kubectl run hello --schedule="*/1 * * * *" --restart=OnFailure --image=busybox -- /bin/sh -c "date; echo Hello from the Kubernetes cluster"
kubectl run --generator=cronjob/v1beta1 is DEPRECATED and will be removed in a future version. Use kubectl run --generator=run-pod/v1 or kubectl create instead.
```

content/en/docs/tasks/job/automated-tasks-with-cron-jobs.md

@@ -61,7 +61,7 @@ cronjob.batch/hello created
 Alternatively, you can use `kubectl run` to create a cron job without writing a full config:
 
 ```shell
-kubectl run hello --schedule="*/1 * * * *" --restart=OnFailure --image=busybox -- /bin/sh -c "date; echo Hello from the Kubernetes cluster"
+kubectl run --generator=run-pod/v1 hello --schedule="*/1 * * * *" --restart=OnFailure --image=busybox -- /bin/sh -c "date; echo Hello from the Kubernetes cluster"
 ```
 
 After creating the cron job, get its status using this command: