Merge pull request #527 from ruby/dependabot/github_actions/actions/configure-pages-4

Bump actions/configure-pages from 3 to 4

Author: hsbt

.github/workflows/gh-pages.yml

@@ -27,7 +27,7 @@ jobs:
           bundler-cache: true
       - name: Setup Pages
         id: pages
-        uses: actions/configure-pages@v3
+        uses: actions/configure-pages@v4
       - name: Build with RDoc
         # Outputs to the './_site' directory by default
         run: bundle exec rake rdoc