Validate config

curl --request POST \
  --url https://api.gcore.com/cdn/logs_uploader/configs/{config_id}/validate \
  --header 'APIKey: <api-key>'

{
  "status": "in_progress",
  "code": 123,
  "updated": "2023-11-07T05:31:56Z",
  "details": "<string>"
}