Get browser sessions

curl --request GET \
  --url https://app.nextbrowser.com/api/v1/browser/sessions \
  --header 'Authorization: <api-key>'

{
  "sessions": [
    {
      "session_id": "<string>",
      "task_name": "<string>",
      "browser_id": "<string>",
      "start_time": "2023-11-07T05:31:56Z",
      "is_online": true,
      "status": "running",
      "proxy_traffic_spent_bytes": 123
    }
  ],
  "total": 123,
  "limit": 123,
  "offset": 123
}