chore(deploy.yml): update config

Author: sunss

.github/workflows/deploy.yml

@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: checkout
-      - uses: actions/checkout@v2
+        uses: actions/checkout@v2
 
       - name: build
         run: npm install && npm run build