chore: update gh-pages deployment

Author: phatnguyenuit

.github/workflows/ci.yml

@@ -49,6 +49,7 @@ jobs:
           git config --global user.email $USER_EMAIL
           git remote set-url origin https://${GITHUB_TOKEN}@github.com/${REPOSITORY}
           yarn release
+          gh-pages-clean
           yarn deploy -m "${{ github.event.head_commit.message }}"
         env:
           USER_NAME: 'github-actions[bot]'