chore(deps): update peaceiris/actions-gh-pages action to v3.9.3 (#97)

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

Author: renovate[bot]

.github/workflows/docs.yml

@@ -32,7 +32,7 @@ jobs:
         run: ./gradlew kdocJar
 
       - name: Deploy
-        uses: peaceiris/actions-gh-pages@354d78ff6f3135c9c78c8e5275615a64dacad357 # v3.0.3
+        uses: peaceiris/actions-gh-pages@373f7f263a76c20808c831209c920827a82a2847 # v3.9.3
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
           publish_dir: ./build/dokka/html