Bump crazy-max/ghaction-github-pages from 3 to 4 (#340)

Bumps [crazy-max/ghaction-github-pages](https://github.com/crazy-max/ghaction-github-pages) from 3 to 4.
- [Release notes](https://github.com/crazy-max/ghaction-github-pages/releases)
- [Commits](crazy-max/ghaction-github-pages@v3...v4)

---
updated-dependencies:
- dependency-name: crazy-max/ghaction-github-pages
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/gh-deploy.yml

@@ -37,7 +37,7 @@ jobs:
  run: |
  npm run build
  - name: deploy frontend to gh pages
- uses: crazy-max/ghaction-github-pages@v3 # https://github.com/crazy-max/ghaction-github-pages
+ uses: crazy-max/ghaction-github-pages@v4 # https://github.com/crazy-max/ghaction-github-pages
  with:
  target_branch: gh-pages
  build_dir: dist