Try to best match working example

Author: mdpiper

.github/workflows/test.yml

@@ -113,8 +113,10 @@ jobs:
 
       - name: Configure, build, and install HeatModelF
         run: |
-          cmake ./external/bmi-example-fortran -B ${{ env.BUILD_DIR }} -LA -G Ninja -DCMAKE_INSTALL_PREFIX=${{ env.LIBRARY_PREFIX }} -DCMAKE_BUILD_TYPE=Release
+          pushd ./external/bmi-example-fortran 
+          cmake -B ${{ env.BUILD_DIR }} -LA -G Ninja -DCMAKE_INSTALL_PREFIX="${{ env.LIBRARY_PREFIX }}"" -DCMAKE_BUILD_TYPE=Release
           cmake --build ${{ env.BUILD_DIR }} --target install --config Release
+          popd
 
       - name: Build and install package
         run: |