added fetch machine pools

[cambelem]

Description

This feature introduces a new parameter for get Clusters to retrieve and add a list of machine pools for a cluster or list of clusters.

Key Features

• Adds --fetch-machinepools to include machinepool information about the cluster(s).

Usage Examples:

Input:
ocm-support get clusters [org_id] --fetch-machinepools

Result:

[
  {
    "id": "1 ... a",
    "href": "/api/clusters_mgmt/v1/clusters/[cluster_id]",
    "name": "cluster-name1",
    "external_id": "1 ... c"
    "display_name": "cluster-name1",
    "subscription_id": "1 ... b",
    "state": "ready",
    "cloud_provider": "aws",
    "version": "4.16.0",
    "region_id": "us-east-1",
    "multi_az": true,
    "machine_pools": [
      {
        "id": "worker-1",
        "instance_type": "m5.2xlarge",
        "replicas": 0,
        "autoscaling": true,
        "max_replicas": 20,
        "min_replicas": 3
      },
      {
        "id": "worker-2",
        "instance_type": "m5.xlarge",
        "replicas": 3,
        "autoscaling": false
      }
    ]
    "product_id": "rosa",
    "managed": true,
    "console_url": "https://console-openshift-console.apps.cluster-name1.com",
    "creation_timestamp": "2024-07-01T01:00:00.000000Z",
  },
...
]

[cristianoveiga]

LGTM