Feat: add `se_atten_v2`to PyTorch and DP #5612

Job	Run time
Build C library (2.15, libdeepmd_c.tar.gz)	1m 38s
Build C library (2.14, >=2.5.0rc0,<2.15, libdeepmd_c_cu11.tar.gz)	1m 37s
Test building from C library	1s
Pass building c library	3s
	3m 19s

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