Fix bug when get shape attribute for PySafeSlice in Windows

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PR types

Bug fixes

PR changes

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Description

same as PaddlePaddle/PaddleFormers#2440
Window 下使用的是 safetensors package，没有 shape 这个属性，Linux 下使用的是 paddlenlp\utils\safetensors.py 自己实现的是有的

Also some issues about it
#10758
#10881

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