chore(deps): update dependency ruby to v4

Author: renovate[bot]

.github/workflows/release-rubygem.yml

@@ -17,7 +17,7 @@ jobs:
           persist-credentials: false
       - uses: ruby/setup-ruby@c4e5b1316158f92e3d49443a9d58b31d25ac0f8f # v1.306.0
         with:
-          ruby-version: '3.4.9'
+          ruby-version: '4.0.3'
       - uses: cucumber/action-publish-rubygem@d8918cbdee789cfc78f346a96a59596b87795be1 # v1.0.0
         with:
           rubygems_api_key: ${{ secrets.RUBYGEMS_API_KEY }}