fix: use get_running_loop() instead of deprecated get_event_loop()

transcription.py

@@ -46,7 +46,7 @@ class TranscriptionEngine:
     async def _transcribe_local(
         self, audio_path: str, language: str, model_name: str, device: str
     ) -> str:
-        loop = asyncio.get_event_loop()
+        loop = asyncio.get_running_loop()
         model = self._get_model(model_name, device)
         segments, _ = await loop.run_in_executor(
             None,