fix: preprocess import bug (#345)

Fixing the issue when executing the script "python -m scripts.preprocess --config ./configs/training/preprocess.yaml" in the Ubuntu environment, due to the "import torch" order problem, the execution of "from musetalk.utils.face_detection import FaceAlignment, LandmarksType" hangs.

scripts/preprocess.py

@@ -1,6 +1,9 @@
 import os
 import argparse
 import subprocess
+import torch
+import numpy as np
+from tqdm import tqdm
 from omegaconf import OmegaConf
 from typing import Tuple, List, Union
 import decord
@@ -9,9 +12,6 @@ import cv2
 from musetalk.utils.face_detection import FaceAlignment,LandmarksType
 from mmpose.apis import inference_topdown, init_model
 from mmpose.structures import merge_data_samples
-import torch
-import numpy as np
-from tqdm import tqdm
 import sys
 
 def fast_check_ffmpeg():
@@ -331,4 +331,4 @@ if __name__ == "__main__":
     config = OmegaConf.load(args.config)
 
     main(config)
-    
+