CI Win: pass -allow-unsupported-compiler

The used 11.8.0.52206 refuses MSVS 2022 v14.40.33807. MSVS 2022 is
supported by CUDA 11.8 in general.

.github/workflows/ccpp.yml

@@ -105,6 +105,7 @@ jobs:
         cmake.exe -DCMAKE_SYSTEM_VERSION=10.0.18362 -DCMAKE_BUILD_TYPE=Release `
           -DBUILD_OPENGL=ON -DGLFW_ROOT_DIR='C:\glfw' -DGLFW_USE_STATIC_LIBS=ON `
           -DGLEW_ROOT='C:\glew' -DGLEW_USE_STATIC_LIBS=ON `
+          -DCMAKE_CUDA_FLAGS=-allow-unsupported-compiler `
           -DCMAKE_CUDA_ARCHITECTURES=35 -Bbuild .
         cmake.exe --build build --config Release --parallel (Get-CimInstance Win32_ComputerSystem).NumberOfLogicalProcessors
         cmake.exe --install build --prefix GPUJPEG