Fix docs workflow for repositories without Pages

Author: yongfenggu

.github/workflows/docs.yml

@@ -6,15 +6,6 @@ on:
       - main
   workflow_dispatch:
 
-permissions:
-  contents: read
-  pages: write
-  id-token: write
-
-concurrency:
-  group: "pages"
-  cancel-in-progress: false
-
 jobs:
   build:
     runs-on: ubuntu-latest
@@ -34,19 +25,3 @@ jobs:
 
       - name: Build docs
         run: python -m mkdocs build --strict
-
-      - name: Upload Pages artifact
-        uses: actions/upload-pages-artifact@v3
-        with:
-          path: site
-
-  deploy:
-    needs: build
-    runs-on: ubuntu-latest
-    environment:
-      name: github-pages
-      url: ${{ steps.deployment.outputs.page_url }}
-    steps:
-      - name: Deploy to GitHub Pages
-        id: deployment
-        uses: actions/deploy-pages@v4