fix windows build error (#14362)
### Description
Fix https://github.com/microsoft/onnxruntime/issues/14359
test\greedy_search_top_one.cc(21,44): warning C4244: '=':
conversion from 'int32_t' to '_Ty', possible loss of data
[C:\Users\11000978\onnxruntime\build\Windows\Debug\onnxrunti
me_providers_cuda.vcxproj]
### Motivation and Context
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- If it fixes an open issue, please link to the issue here. -->
