[Torch] Fix conv2d transpose with group #10235
Merged
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Closes #10223
According to https://github.com/pytorch/pytorch/blob/7b8f73dd32a8a893dfb794433ce501e76c53bc89/torch/nn/modules/conv.py#L127-L129,
to correctly decide the output
channelsattribute from the weight shape, we need to multiplyweight_shape[1]by groups.cc @comaniac @junrushao1994