bump upload artifact

Author: wirednkod

.github/workflows/pages.yml

@@ -62,7 +62,7 @@ jobs:
         run: |
           chmod -c -R +rX "html-book" 
       - name: Upload artifact
-        uses: actions/upload-pages-artifact@v2
+        uses: actions/upload-pages-artifact@v3
         with:
           path: ./html-book