[BUG] `torch.norm` is deprecated

[njzjz]

Bug summary

See https://pytorch.org/docs/2.0/generated/torch.norm.html

deepmd-kit/deepmd/pt/utils/nlist.py

Line 460 in a0747b9

shift_idx = xyz[torch.argsort(torch.norm(xyz, dim=1))]

DeePMD-kit Version

devel

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This is detected by torchfix

deepmd/pt/utils/nlist.py:460:40: TOR101 Use of deprecated function torch.norm

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