chore(deps): update peaceiris/actions-gh-pages action to v4 (#132)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/website.yml

@@ -27,7 +27,7 @@ jobs:
           CURRENT_VERSION: ${{ env.CURRENT_VERSION }}
         working-directory: example/
       - name: Deploy
-        uses: peaceiris/actions-gh-pages@v3
+        uses: peaceiris/actions-gh-pages@v4
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
           publish_dir: ./example/dist