fix: DeepgramSTTService await is_connected()

CHANGELOG.md

@@ -72,6 +72,9 @@ reason")`.
 
 ### Fixed
 
+- Fixed `DeepgramSTTService._disconnect()` to properly await `is_connected()`
+  method call, which is an async coroutine in the Deepgram SDK.
+
 - Fixed an issue where the `SmallWebRTCRequest` dataclass in runner would scrub
   arbitrary request data from client due to camelCase typing. This fixes data
   passthrough for JS clients where `APIRequest` is used.

src/pipecat/services/deepgram/stt.py

@@ -236,7 +236,7 @@ class DeepgramSTTService(STTService):
             logger.error(f"{self}: unable to connect to Deepgram")
 
     async def _disconnect(self):
-        if self._connection.is_connected:
+        if await self._connection.is_connected():
             logger.debug("Disconnecting from Deepgram")
             # Deepgram swallows asyncio.CancelledError internally which prevents
             # proper cancellation propagation. This issue was found with