Bump the range of supported Ruby versions

Ruby 3.4 is out

Author: naitoh

.github/workflows/ci.yml

@@ -24,6 +24,7 @@ jobs:
           - "3.1"
           - "3.2"
           - "3.3"
+          - "3.4"
         gemfile:
           - gemfiles/rails_7_0.gemfile
           - gemfiles/rails_7_1.gemfile
@@ -56,7 +57,7 @@ jobs:
       - name: Setup Ruby
         uses: ruby/setup-ruby@v1
         with:
-          ruby-version: "3.3"
+          ruby-version: "3.4"
           bundler-cache: true
       - run: bundle exec rake spec || echo "Rails edge test is done."