Bump upload-pages-artifact version

Author: matteason

.github/workflows/deploy-example.yml

@@ -38,7 +38,7 @@ jobs:
     - run: npm install          
     - run: npm run build
     - name: Upload artifact
-      uses: actions/upload-pages-artifact@v2
+      uses: actions/upload-pages-artifact@v4
       with:
         path: ./dist