fix(train): mysterious importing order

rvc/f0/fcpe.py

@@ -1,8 +1,7 @@
-from typing import Any, Optional, Union
+from typing import Optional, Union
 
 import numpy as np
 import torch
-from torchfcpe import spawn_bundled_infer_model
 
 from .f0 import F0Predictor
 
@@ -24,6 +23,8 @@ class FCPE(F0Predictor):
             device,
         )
 
+        from torchfcpe import spawn_bundled_infer_model  # must be imported at here, or it will cause fairseq crash on training
+
         self.model = spawn_bundled_infer_model(self.device)
 
     def compute_f0(