Speech to speech - sample python nova_sonic_simple.py is giving OSError: Stream is completed and doesn't support further writes.

```
2025-07-16 22:46:14,096 - asyncio - ERROR - Task exception was never retrieved

future: exception=OSError("Stream is completed and doesn't support further writes.")>

Traceback (most recent call last):

File "/Users/luck/may_2025/amazon-nova-samples/speech-to-speech/workshops/python-server/.venv/lib/python3.13/site-packages/smithy_http/aio/crt.py", line 396, in _consume_body_async

dest.write(chunk)

~~~~~~~~~~^^^^^^^

File "/Users/luck/may_2025/amazon-nova-samples/speech-to-speech/workshops/python-server/.venv/lib/python3.13/site-packages/smithy_http/aio/crt.py", line 471, in write

raise OSError("Stream is completed and doesn't support further writes.")

OSError: Stream is completed and doesn't support further writes.

2025-07-16 22:45:07,579 - asyncio - ERROR - Future exception was never retrieved

future:

awscrt.exceptions.AwsCrtError: AWS_ERROR_HTTP_RST_STREAM_RECEIVED: Peer sent RST_STREAM to terminate HTTP-stream.
```