Increase audio stream test timeout for Windows Py3.14

Author: Copilot

livekit-rtc/tests/test_audio.py

@@ -182,7 +182,7 @@ async def collect_samples() -> np.ndarray:
                 return np.concatenate(buffers) if buffers else np.array([], dtype=np.int16)
 
             publish_task = asyncio.create_task(publish_tones())
-            received = await asyncio.wait_for(collect_samples(), timeout=20.0)
+            received = await asyncio.wait_for(collect_samples(), timeout=30.0)
             await publish_task
             await audio_stream.aclose()
             await source.aclose()