rubocop.yml in rack-simple_user_agent-1.1.1

- old
+ new

@@ -4,12 +4,12 @@
 
 jobs:
   rubocop:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Set up Ruby
         uses: ruby/setup-ruby@v1
         with:
-          ruby-version: 3.2
+          ruby-version: 3.3
           bundler-cache: true
       - run: bundle exec rubocop