[GithubActions] Updating to actions/upload-pages-artifact@v3

Author: Murilo M. Marinho

.github/workflows/notebook_to_html.yml

@@ -39,7 +39,7 @@ jobs:
 
       # Upload the book's HTML as an artifact
       - name: Upload artifact
-        uses: actions/upload-pages-artifact@v4
+        uses: actions/upload-pages-artifact@v3
         with:
           path: "_build/html"