update upload path

Author: geritwagner

.github/workflows/pages.yml

@@ -56,6 +56,8 @@ jobs:
       - name: Upload artifact
         # Automatically uploads an artifact from the './_site' directory by default
         uses: actions/upload-pages-artifact@v3
+        with:
+          path: docs/_site
 
   # Deployment job
   deploy: