[Bug+Suggestion] CCCL CMake Config for CUDA 13

[osayamenja]

• CCCL headers moved to a different directory in CUDA 13
• MSCCLPP build fails due to stale include here
• Quickest fix for me was to change this blob from CMakeLists.txt as below.

if(MSCCLPP_USE_CUDA)
    #...
    find_package(CCCL PATHS ${CUDAToolkit_LIBRARY_DIR}/cmake/cccl)
    if (CCCL_FOUND AND CUDAToolkit_VERSION_MAJOR GREATER 12)
        set(GPU_LIBRARIES CUDA::cudart CUDA::cuda_driver CCCL::CCCL)
    elseif()
        set(GPU_LIBRARIES CUDA::cudart CUDA::cuda_driver)
    endif()
    #...
else()

[chhwang]

@osayamenja We adopted your solution. Thank you for your contributions!