chore(deps): update dependency ruby to v4

Author: renovate[bot]

.github/workflows/test.yml

@@ -79,7 +79,7 @@ jobs:
       - uses: actions/checkout@master
       - uses: ruby/setup-ruby@v1
         with:
-          ruby-version: "3.4.8"
+          ruby-version: "4.0.0"
           bundler-cache: True
 
       - run: bundle exec rubocop --fail-level E --extra-details --display-time --color