Not picking the value from allowed list

When we have set the allowed property in bicep file, it is not picking from that and sending a value as test, Due to this template validation is failing.

<img width="713" height="124" alt="Image" src="https://github.com/user-attachments/assets/b7c74506-931f-4901-bffc-83253ecfd710" />