minor fix to artifact@v4

Author: moisesmsf

.github/workflows/cy.yml

@@ -29,5 +29,7 @@ jobs:
       - run: mkdocs gh-deploy --force
       - name: Upload to GitHub Pages
         uses: actions/upload-pages-artifact@v4
+        with:
+          path: site
       - name: Deploy to GitHub Pages
         uses: actions/deploy-pages@v4