update deploy action

Author: 9bow

.github/workflows/deploy-gh-pages.yml

@@ -27,7 +27,6 @@ jobs:
       - uses: actions/checkout@v3
         with:
           submodules: true
-          ref: ${{ github.event.pull_request.head.sha }}
 
       - name: pip wheels cache
         uses: actions/cache/restore@v3