[Refactor] Modify the importing path due to mmengine changes (#2224)

tests/test_ops/test_deform_conv.py

@@ -2,7 +2,8 @@
 import numpy as np
 import pytest
 import torch
-from mmengine.utils import TORCH_VERSION, digit_version
+from mmengine.utils import digit_version
+from mmengine.utils.dl_utils import TORCH_VERSION
 
 try:
     # If PyTorch version >= 1.6.0 and fp16 is enabled, torch.cuda.amp.autocast

tests/test_ops/test_modulated_deform_conv.py

@@ -4,7 +4,8 @@ import os
 import numpy
 import pytest
 import torch
-from mmengine.utils import TORCH_VERSION, digit_version
+from mmengine.utils import digit_version
+from mmengine.utils.dl_utils import TORCH_VERSION
 
 try:
     # If PyTorch version >= 1.6.0 and fp16 is enabled, torch.cuda.amp.autocast

tests/test_utils/test_parrots_jit.py

 # Copyright (c) OpenMMLab. All rights reserved.
 import pytest
 import torch
-from mmengine.utils import TORCH_VERSION
+from mmengine.utils.dl_utils import TORCH_VERSION
 
 import mmcv