Fix issue with building pages

Author: philipbl

.github/workflows/github_pages.yml

@@ -36,8 +36,8 @@ jobs:
       - name: Setup Ruby
         uses: ruby/setup-ruby@v1
         with:
-          ruby-version: '3.1' # Not needed with a .ruby-version file
-          bundler-cache: true # runs 'bundle install' and caches installed gems automatically
+          ruby-version: 3.4
+          bundler-cache: true
           cache-version: 0 # Increment this number if you need to re-download cached gems
       - name: Setup Pages
         id: pages