The number of sample_prob weights does not match the task_types

<img width="767" alt="Image" src="https://github.com/user-attachments/assets/7d730d7d-7960-47f1-aca6-cd9c7dbc3501" />
        

https://github.com/Alpha-VLLM/Lumina-Accessory/blob/f260ba28dcd76fd6176036e9657de1bce1081a68/finetune_accessory.py#L188