llvm-config.exe is now available for windows system.

[krishna116]

Release page:
https://github.com/llvm/llvm-project/releases/tag/llvmorg-23.1.1

Windows package contain llvm-config.exe:
https://github.com/llvm/llvm-project/releases/download/llvmorg-23.1.1/clang+llvm-23.1.1-x86_64-pc-windows-msvc.tar.zst