Download Artifacts in Code Documentation Workflow (#76)

This PR add the code to download the artifacts from a previous workflow.

.github/workflows/code-documentation.yml

@@ -57,6 +57,12 @@ jobs:
     steps:
     - uses: actions/checkout@v3
 
+    - name: Download Build Directory
+      uses: actions/download-artifact@main
+      with:
+        name: cmake-build-artifact-${{ matrix.os }}-${{ matrix.build_type }}-${{ matrix.cpp_compiler }}
+        path: ${{ steps.strings.outputs.build-output-dir }}
+
     # Compared to Window and MacOS best option with stable ~2 min installation time.
     - name: Install LaTeX (Linux)
       if: startsWith(matrix.os,'ubuntu-')