chore(deps): update peaceiris/actions-gh-pages digest to 84c30a8

Author: renovate[bot]

.github/workflows/deploy.yml

@@ -50,7 +50,7 @@ jobs:
             NODE_ENV: production
         - name: Deploy playground to GitHub Pages
           if: ${{ env.TRIGGER_DEPLOY == 'true'}}
-          uses: peaceiris/actions-gh-pages@4f9cc6602d3f66b9c108549d475ec49e8ef4d45e # v4
+          uses: peaceiris/actions-gh-pages@84c30a85c19949d7eee79c4ff27748b70285e453 # v4
           with:
             github_token: ${{ secrets.GITHUB_TOKEN }}
             publish_dir: playground