chore: bump actions/deploy-pages from 2.0.2 to 2.0.3 (#5342)

Bumps [actions/deploy-pages](https://github.com/actions/deploy-pages) from 2.0.2 to 2.0.3.
- [Release notes](https://github.com/actions/deploy-pages/releases)
- [Commits](actions/deploy-pages@ee48c7b...12ab2b1)

---
updated-dependencies:
- dependency-name: actions/deploy-pages
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Anton Grübel <[email protected]>

.github/workflows/jekyll-gh-pages.yml

@@ -48,4 +48,4 @@ jobs:
     steps:
       - name: Deploy to GitHub Pages
         id: deployment
-        uses: actions/deploy-pages@ee48c7b82e077d7b8ef30b50a719e6a792a50c9a  # v2
+        uses: actions/deploy-pages@12ab2b16cf43a7a061fe99da74b6f8f11fb77f5b  # v2