chore: update workflow upload action version to 3

Author: liaobinbin

.github/workflows/hugo.yml

@@ -56,7 +56,7 @@ jobs:
         run: |
           hugo
       - name: Upload artifact
-        uses: actions/upload-pages-artifact@v2
+        uses: actions/upload-pages-artifact@v3
         with:
           path: ./docs