Update deploy_pages.yml

Author: braboj

.github/workflows/deploy_pages.yml

@@ -50,7 +50,7 @@ jobs:
       - run: pip install mkdocs-section-index
       - run: mkdocs build --site-dir ./_site
       - name: Upload artifact
-        uses: actions/upload-pages-artifact@v1
+        uses: actions/upload-pages-artifact@v4
 
   # The deployment job
   deploy: