[BUG] Infobip Send SMS not working

It seems the Infobip Send SMS action is not sending the parameters with the proper structure expected by the API.

<img width="1524" height="870" alt="Image" src="https://github.com/user-attachments/assets/18b234e1-89a4-4cbd-94d4-d6437114314f" />

<img width="1175" height="904" alt="Image" src="https://github.com/user-attachments/assets/9bfdd7f1-ffd4-427d-a4fd-35111b5dfbd6" />