[Feature Request] Fix `crt/host_defines.h` missing in CUDA 13 for FlashAttention builds

[SPRCSY]

Thanks for this awesome action!

I'm trying to build FlashAttention on Windows using your action with CUDA 13.x, but it fails because host_defines.h has moved in the official toolkit (from include/crt/ to include/).

Error:

fatal error C1083: Cannot open include file: 'crt/host_defines.h': No such file or directory

Request:
Could you add a small workaround in the action script for CUDA 13+ on Windows?
Something like copying or linking the file back to the old location during setup:

# Example fix
Copy-Item "$env:CUDA_PATH\include\host_defines.h" "$env:CUDA_PATH\include\crt\host_defines.h"

This would unblock FlashAttention and other projects relying on the old path without needing users to fork the repo or downgrade CUDA.

Let me know if you need more details. Thanks!