Invalid Input in sample_chat_completions_with_audio_data.py

- **Package Name**: azure-ai-inference
- **Package Version**: 1.0.0b9
- **Operating System**: Windows 10
- **Python Version**: Python 3.10.12

**Describe the bug**
azure-ai-inference/samples/sample_chat_completions_with_audio_data.py

```azure.core.exceptions.HttpResponseError: (Invalid input) invalid input error
Code: Invalid input
Message: invalid input error```

**To Reproduce**
Steps to reproduce the behavior:
1. Set up environment variable as in sample_chat_completions_with_audio_data.py
2. Run sample_chat_completions_with_audio_data.py

**Expected behavior**
no error and normal text response from the model

**Screenshots**
If applicable, add screenshots to help explain your problem.

**Additional context**
Model being tested is Phi-4-multimodal on Azure Serverless