updates actions versions

Author: djliden

.github/workflows/deploy.yml

@@ -44,8 +44,8 @@ jobs:
       - name: Upload artifact
         uses: actions/upload-pages-artifact@v3
         with:
-          path: "notebooks/_build/html"
+          path: "./notebooks/_build/html"
       # Deploy the book's HTML to GitHub Pages
       - name: Deploy to GitHub Pages
         id: deployment
-        uses: actions/deploy-pages@v2
+        uses: actions/deploy-pages@v4