**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
tests/providers/google/cloud/operators/test_dataproc.py
@mock.patch(DATAPROC_PATH.format("DataprocHook"))
    def test_execute(self, mock_hook):
        op = DataprocCreateWorkflowTemplateOperator(
            task_id=TASK_ID,
            gcp_conn_id=GCP_CONN_ID,
            impersonation_chain=IMPERSONATION_CHAIN,
            location=GCP_LOCATION,
            project_id=GCP_PROJECT,
            retry=RETRY,
            timeout=TIMEOUT,
            metadata=METADATA,
            template=WORKFLOW_TEMPLATE,
        )
        op.execute(context={})
        mock_hook.assert_called_once_with(gcp_conn_id=GCP_CONN_ID, impersonation_chain=IMPERSONATION_CHAIN)
        mock_hook.return_value.create_workflow_template.assert_called_once_with(
            location=GCP_LOCATION,
            project_id=GCP_PROJECT,
            retry=RETRY,
            timeout=TIMEOUT,
            metadata=METADATA,
            template=WORKFLOW_TEMPLATE,
        )