message: use prebuilt binaries for Embree on Windows CI jobs
diff: @@ -28,6 +28,7 @@ cmake -L ^
  -D BUILD_JOBS=4 ^
  -D BUILD_OSPRAY_MPI="%~3" ^
  -D BUILD_TBB_FROM_SOURCE=OFF ^
  +-D BUILD_EMBREE_FROM_SOURCE=OFF ^
  ../scripts/superbuild
  cmake --build . --config Release --target ALL_BUILD -- /m /nologo
  