Add debugging steps to PyTest workflow for better failure diagnostics

.github/workflows/pytest.yml

@@ -40,3 +40,13 @@ jobs:
           PYTHONPATH: src
         run: |
           pytest -v tests/test_codemapper.py || (cat ./_codemaps/codemapper_codemap.md && exit 1)
+
+      - name: Debugging
+        if: failure()
+        run: |
+          echo "Listing files in the current directory:"
+          ls -la
+          echo "Listing files in the _codemaps directory:"
+          ls -la _codemaps
+          echo "Displaying the contents of the generated markdown file:"
+          cat ./_codemaps/codemapper_codemap.md || echo "Markdown file not found"