[Accuracy diff No.57、69] Fix accuracy diff for sum API

[ooooo-create]

PR Category

Execute Infrastructure

PR Types

Improvements

Description

https://github.com/pytorch/pytorch/blob/3c74a72ea08a7a7e50c586c22eb6d75e6fed54f3/aten/src/ATen/native/cpu/SumKernel.cpp#L625C1-L629C2

Torch 为了精度float16和bfloat16也是会进行 float32 的计算，为了精度采用 pytorch 的处理方式，进行计算时也采用 float32，比 cast的优先级高
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Codecov Report

Attention: Patch coverage is 92.30769% with 1 line in your changes missing coverage. Please review.

Please upload report for BASE (develop@e1184db). Learn more about missing BASE report.

Files with missing lines	Patch %	Lines
paddle/phi/kernels/cpu/reduce_sum_kernel.cc	92.30%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             develop   #73012   +/-   ##
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  Coverage           ?   92.30%           
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  Files              ?        1           
  Lines              ?       13           
  Branches           ?        0           
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  Hits               ?       12           
  Misses             ?        1           
  Partials           ?        0           

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