Add uncomitted file

Author: Itzi Zubeldia

.github/workflows/ci.yml

@@ -20,6 +20,6 @@ jobs:
       - name: Build site
         run: mkdocs build
       - name: Upload artifact
-        uses: actions/upload-pages-artifact@v4
+        uses: actions/upload-pages-artifact@v3
         with:
           path: site