Retrieve webhook stats

curl -X GET "https://api.live.paisr.tech/v2/webhooks/{webhook_id}/stats" \
  -H "Authorization: Bearer <access_token>" \
  -H "User-Agent: MyApp/1.0" \
  -H "Content-Type: application/json"

{
  "success": true,
  "data": {
    "success": 10,
    "failed": 2,
    "pending": 0
  }
}