[Fix] Skip filtered_lrelu ut when cuda is less than 10.2 (#2677)

tests/test_ops/test_filtered_lrelu.py

 # Copyright (c) OpenMMLab. All rights reserved.
 import pytest
 import torch
+from mmengine.utils import digit_version
 
 from mmcv.ops import filtered_lrelu
 
@@ -113,7 +114,10 @@ class TestFilteredLrelu:
             self.input_tensor, bias=self.bias, flip_filter=True)
         assert out.shape == (1, 3, 16, 16)
 
-    @pytest.mark.skipif(not torch.cuda.is_available(), reason='requires cuda')
+    @pytest.mark.skipif(
+        not torch.cuda.is_available()
+        or digit_version(torch.version.cuda) < digit_version('10.2'),
+        reason='requires cuda>=10.2')
     def test_filtered_lrelu_cuda(self):
         out = filtered_lrelu(self.input_tensor.cuda(), bias=self.bias.cuda())
         assert out.shape == (1, 3, 16, 16)