增加实现方法

lib/data/services/speech_impl/volcano_asr_api_service.dart

@@ -809,4 +809,9 @@ class VolcanoAsrApiService implements AsrService {
     _isContinuousRecognitionActive = false;
     _isRecognitionEndRequested = false;
   }
+
+  @override
+  Future<void> pushAudioData(Uint8List data) {
+    throw UnimplementedError();
+  }
 }