[issue40859] Update Windows build to use xz-5.2.5

Change by Ma Lin : -- keywords: +patch pull_requests: +19847 stage: -> patch review pull_request: https://github.com/python/cpython/pull/20622 ___ Python tracker ___

[issue40859] Update Windows build to use xz-5.2.5

New submission from Ma Lin : The Windows build is using xz-5.2.2, it was released on 2015-09-29. xz-5.2.5 was released recently, maybe we can update this library. When preparing cpython-source-deps, don't forget to copy `xz-5.2.5\windows\vs2019\config.h` to `xz-5.2.5\windows\` folder.