Complete a 3DS2 authorisation

For an authenticated 3D Secure 2 session, completes the payment authorisation. This endpoint must receive the `threeDS2Token` and `threeDS2Result` parameters. > This endpoint is part of our [classic API integration](https://docs.adyen.com/online-payments/classic-integrations/api-integration-ecommerce/3d-secure). If using a [newer integration](https://docs.adyen.com/online-payments), use the [`/payments/details`](https://docs.adyen.com/api-explorer/#/CheckoutService/payments/details) endpoint...