Use env.pythonLocaton

Author: t-sommer

.github/workflows/build.yml

@@ -18,11 +18,8 @@ jobs:
     - run: cmake . -G "Visual Studio 17 2022" -Bcpp_build
     - run: cmake --build cpp_build --config Release
     - run: cpp_build\Release\ExternalLibraryTest.exe
-    - run: where python
-    - run: which python
     - run: |
-        $python_exe = where python
-        $python_exe = $python_exe -replace "\\", "/"
+        $python_exe = "${{ env.pythonLocation }}/python.exe" -replace "\\", "/"
         cmake . -G "Visual Studio 17 2022" -B python_build -D EXTERNAL_LANGUAGE=Python -D PYTHON_EXE="$python_exe"
     - run: cmake --build python_build --config Release
     - run: python -m pip install -e Python