Force the windows workflow to use a specific python path (#251)

* Hardcode the python path on windows

* Update sdk_build.yml

Author: a-maurice

.github/workflows/sdk_build.yml

@@ -151,7 +151,7 @@ jobs:
           # ./build_windows_x64.bat ${{ github.event.inputs.additional_cmake_flags }} TODO convert to python script
           mkdir ${{ matrix.build_dir }}
           pushd ${{ matrix.build_dir }}
-          cmake .. -G "Visual Studio 16 2019" -A x64 -DFIREBASE_CPP_SDK_DIR="${FIREBASE_CPP_SDK_DIR}" -DUNITY_ROOT_DIR="${UNITY_ROOT_DIR}" -DSWIG_DIR="${SWIG_DIR}" ${{ github.event.inputs.additional_cmake_flags }}
+          cmake .. -G "Visual Studio 16 2019" -A x64 -DFIREBASE_CPP_SDK_DIR="${FIREBASE_CPP_SDK_DIR}" -DUNITY_ROOT_DIR="${UNITY_ROOT_DIR}" -DSWIG_DIR="${SWIG_DIR}" -DFIREBASE_PYTHON_HOST_EXECUTABLE:FILEPATH=C:/hostedtoolcache/windows/Python/3.7.9/x64/python.exe ${{ github.event.inputs.additional_cmake_flags }}
           echo "=-=-=-=-=-=-=-=-="
           echo "Start Build"
           echo "=-=-=-=-=-=-=-=-="