Get leaderboard for workspace

curl --request GET \
  --url https://api.readmin.app/activity/workspace/leaderboard \
  --header 'loader-id: <api-key>'

{
  "success": true,
  "leaderboard": [
    {
      "_id": "<string>",
      "userId": "<string>",
      "groupId": "<string>",
      "distribution": "<string>",
      "sessions": [
        "<string>"
      ],
      "minutes": {
        "total": 123,
        "active": 123,
        "inactive": 123,
        "typing": 123,
        "messages": 123
      },
      "goals": {},
      "created": "2023-11-07T05:31:56Z",
      "attendedSessions": [
        "<string>"
      ],
      "updated": "2023-11-07T05:31:56Z"
    }
  ]
}