chore(deps): update peaceiris/actions-gh-pages action to v4 (#48)

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

Author: renovate[bot]

.github/workflows/gh-pages.yaml

@@ -19,7 +19,7 @@ jobs:
       - run: "pip install catppuccin[pygments,gh-pages]"
       - run: "scripts/build-gh-pages"
       - run: "npx lightningcss-cli --minify ./gh-pages/pygments/*.css --output-dir ./gh-pages/pygments/"
-      - uses: "peaceiris/actions-gh-pages@v3"
+      - uses: "peaceiris/actions-gh-pages@v4"
         with:
           enable_jekyll: false
           github_token: "${{ secrets.GITHUB_TOKEN }}"