fix: use .ruby-version [skip ci]

Author: gjtorikian

.github/workflows/release.yml

@@ -27,7 +27,6 @@ jobs:
       - name: Setup Ruby
         uses: ruby/setup-ruby@7372622e62b60b3cb750dcd2b9e32c247ffec26a # v1.302.0
         with:
-          ruby-version: "3.2"
           bundler-cache: true
 
       - name: Run tests