**Description**
Currently, we can only pass custom Image name to  **DataprocClusterCreateOperator(),**
as the custom image expires after 60 days, we either need to update the image or we need to pass the expiration token.

Functionality is already available in **gcloud** and **REST**.

`gcloud dataproc clusters test_cluster ......
--image projects/<custom_image_project_id>/global/images/family/<family_name>
.......
`


**Use case / motivation**
The user should be able to pass either Custom Image or Custom Image family name,
so we don't have to update the image up on expiration or use expiration token.


**Are you willing to submit a PR?**
Yes

**Related Issues**
None
airflow/providers/google/cloud/operators/dataproc.py
scale_data = {
            'config': {
                'worker_config': {'num_instances': self.num_workers},
                'secondary_worker_config': {'num_instances': self.num_preemptible_workers},
            }
        }
        return scale_data
    @property
    def _graceful_decommission_timeout_object(self) -> Optional[Dict[str, int]]: