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

Author: renovate[bot]

.github/workflows/release.yml

@@ -69,7 +69,7 @@ jobs:
       - name: Generate Documentation
         run: ./gradlew dokkaGenerate
       - name: Publish Documentation
-        uses: peaceiris/actions-gh-pages@v3.9.3
+        uses: peaceiris/actions-gh-pages@v4.0.0
         with:
           publish_dir: ./build/dokka/html
           deploy_key: ${{ secrets.GH_PAGES_DEPLOY_KEY }}