Check iostream installed

Author: mcbarton

Diff for: .github/workflows/main.yml

@@ -87,6 +87,7 @@ jobs:
           call C:\Users\runneradmin\micromamba-root\condabin\micromamba.bat activate xeus-cpp
           mkdir -p build
           cd build
+          ls "C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Tools\MSVC\14.29.30133\include"
           cmake .. -G "NMake Makefiles" -DCMAKE_BUILD_TYPE=Release -DXEUS_BUILD_TESTS=ON -DDEPENDENCY_SEARCH_PREFIX="%CONDA_PREFIX%\Library" -DCMAKE_PREFIX_PATH="%CONDA_PREFIX%\Library" -DCMAKE_INSTALL_PREFIX="%CONDA_PREFIX%"
 
       - name: cmake configure