Bump actions/jekyll-build-pages from 1.0.12 to 1.0.13

Bumps [actions/jekyll-build-pages](https://github.com/actions/jekyll-build-pages) from 1.0.12 to 1.0.13.
- [Release notes](https://github.com/actions/jekyll-build-pages/releases)
- [Commits](actions/jekyll-build-pages@v1.0.12...v1.0.13)

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

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

@@ -30,7 +30,7 @@ jobs:
       - name: Setup Pages
         uses: actions/[email protected]
       - name: Build with Jekyll
-        uses: actions/[email protected].12
+        uses: actions/[email protected].13
         with:
           source: ./
           destination: ./_site