chore(deps): update dependency ruby to v4

Author: renovate[bot]

.github/workflows/changelog.yml

@@ -23,7 +23,7 @@ jobs:
       - name: Set up Ruby
         uses: ruby/setup-ruby@v1
         with:
-          ruby-version: 3.1.0
+          ruby-version: 4.0.1
       - name: Install `github_changelog_generator`
         run: |
           command gem install github_changelog_generator