azure-ai-voicelive: unhandled websocket message type CLOSING results in error

[jolerasioo]

• Package Name: azure-ai-voicelive
• Package Version: 1.1.0
• Operating System: linux
• Python Version: 3.12

Describe the bug
When integrated in a websocket, voicelive SDK has no logic to manage CLOSING as received websocket message type, only CLOSE and CLOSED. Other Azure service return closing, resulting in websocket errors. CLOSING is fairly common so I believe it should be included, specially since this service is made to be integrated in a websocket with others. You can find the relevant code here: https://github.com/Azure/azure-sdk-for-python/blob/main/sdk/voicelive/azure-ai-voicelive/azure/ai/voicelive/aio/_patch.py#L523

To Reproduce
Steps to reproduce the behavior:

1. Create the websocket
2. Make the other party return CLOSING
3. Results in error

Expected behavior
CLOSING message type should not error out. Either needs to be handled or ignored.

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

Additional context
Our session id was: sess_6Zxvf6tkDngFpn3CwcvbTE
Please do not hesitate to reach out for more data points. Thank you.