Merge branch '1.6' of github.com:sulu/sulu-docs into 2.0

Author: alexander-schranz

.github/workflows/build-docs.yaml

@@ -23,7 +23,7 @@ jobs:
             - name: Sphinx Build
               run: sphinx-build -n -W --keep-going -b html -d _build/doctrees . _build/html
 
-            - uses: actions/upload-artifact@v1
+            - uses: actions/upload-artifact@v4
               with:
                   name: DocumentationHTML
                   path: "_build/html"