**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
if self.zone:
            master_type_uri = (
                f"projects/{self.project_id}/zones/{self.zone}/machineTypes/{self.master_machine_type}"
            )
            worker_type_uri = (
                f"projects/{self.project_id}/zones/{self.zone}/machineTypes/{self.worker_machine_type}"
            )
        else:
            master_type_uri = self.master_machine_type
            worker_type_uri = self.worker_machine_type
        cluster_data = {
            'gce_cluster_config': {},
            'master_config': {
                'num_instances': self.num_masters,
                'machine_type_uri': master_type_uri,
                'disk_config': {
                    'boot_disk_type': self.master_disk_type,
                    'boot_disk_size_gb': self.master_disk_size,
                },
            },
            'worker_config': {
                'num_instances': self.num_workers,
                'machine_type_uri': worker_type_uri,