CLOUDP-285953: add support for flex clusters to atlas backup restores get

[andreaangiolillo]

Proposed changes

Jira ticket: CLOUDP-285953

This PR updates atlas backup restores get to support flex clusters.

Flex Cluster

./bin/atlas backup restore get 676199f379377141139ad79c --clusterName ClusterFlex -P prod -o json                                   
{
  "deliveryType": "RESTORE",
  "expirationDate": "2024-12-17T21:34:11Z",
  "id": "676199f379377141139ad79c",
  "instanceName": "ClusterFlex",
  "projectId": "663268874ddd3b236fd2f107",
  "restoreFinishedDate": "2024-12-17T15:35:01Z",
  "restoreScheduledDate": "2024-12-17T15:34:11Z",
  "snapshotFinishedDate": "2024-12-16T11:58:50Z",
  "snapshotId": "6760158f52708c22437edb7a",
  "status": "COMPLETED",
  "targetDeploymentItemName": "ClusterFlex",
  "targetProjectId": "663268874ddd3b236fd2f107"
}

 ./bin/atlas backup restore get 676199f379377141139ad79c --clusterName ClusterFlex -P prod                                            
 ID                         SNAPSHOT                   CLUSTER       TYPE      EXPIRES AT                      URLs
676199f379377141139ad79c   6760158f52708c22437edb7a   ClusterFlex   RESTORE   2024-12-17 21:34:11 +0000 UTC

Dedicated Cluster

./bin/atlas backup restore get 6762b574ac7a500609061084 --clusterName ClusterDedicated -P prod -o json                                  
{
  "cancelled": false,
  "deliveryType": "pointInTime",
  "deliveryUrl": [],
  "desiredTimestamp": {
    "date": "2024-12-17T12:00:00Z",
    "increment": 0
  },
  "expired": false,
  "failed": false,
  "id": "6762b574ac7a500609061084",
  "links": [
    {
      "href": "https://cloud.mongodb.com/api/atlas/v2/groups/663268874ddd3b236fd2f107/clusters/ClusterFlex1/backup/restoreJobs/6762b574ac7a500609061084",
      "rel": "self"
    },
    {
      "href": "https://cloud.mongodb.com/api/atlas/v2/groups/663268874ddd3b236fd2f107/clusters/ClusterFlex1/backup/snapshots/676145dc6af0b746ef72aaec",
      "rel": "https://cloud.mongodb.com/snapshot"
    },
    {
      "href": "https://cloud.mongodb.com/api/atlas/v2/groups/663268874ddd3b236fd2f107/clusters/ClusterFlex1",
      "rel": "https://cloud.mongodb.com/cluster"
    },
    {
      "href": "https://cloud.mongodb.com/api/atlas/v2/groups/663268874ddd3b236fd2f107",
      "rel": "https://cloud.mongodb.com/group"
    }
  ],
  "snapshotId": "676145dc6af0b746ef72aaec",
  "targetClusterName": "ClusterDedicated",
  "targetGroupId": "663268874ddd3b236fd2f107",
  "timestamp": "2024-12-17T09:37:50Z"
}

./bin/atlas backup restore get 6762b574ac7a500609061084 --clusterName ClusterDedicated -P prod                                        
ID                         SNAPSHOT                   CLUSTER        TYPE          EXPIRES AT   URLs
6762b574ac7a500609061084   676145dc6af0b746ef72aaec   ClusterDedicated   pointInTime   <nil>

[apix-bot]

Coverage Report 📈

Branch	Commit	Coverage
CLOUDP-287238_flex_cluster_feature_branch	7db2572	38.5%
CLOUDP-285953	064c0d8	38.6%
	Difference	.1%

[blva]

LGTM