fix format

wesep/cli/extractor.py

@@ -150,7 +150,7 @@ def extract_speech_from_pcm(self,
             target_speech = outputs.to(torch.device("cpu"))
             if self.output_norm:
                 target_speech = (
-                    target_speech 
+                    target_speech
                     / abs(target_speech).max(dim=1, keepdim=True).values * 0.9
                 )
             return target_speech