👷 migrate doc deploy (#2100)

.github/workflows/now.yml

@@ -1,26 +0,0 @@
-name: Qiankun Doc Deploy
-on:
-  push:
-    branches:
-      - master
-jobs:
-  deploy:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2
-      - name: build
-        env:
-          NOW_DEPLOY: true
-        run: |
-          yarn
-          yarn docs:build
-      - uses: amondnet/vercel-action@v19
-        id: vercel-deployment-production
-        with:
-          github-token: ${{ secrets.GITHUB_TOKEN }}
-          vercel-token: ${{ secrets.ZEIT_TOKEN }}
-          vercel-org-id: ${{ secrets.NOW_ORG_ID }}
-          vercel-project-id: ${{ secrets.NOW_PROJECT_ID }}
-          working-directory: dist
-          vercel-args: '--prod'
-          scope: chencheng