Bump Ruby to the latest stable version (#409)

Author: fbenevides

.github/workflows/release.yml

@@ -59,7 +59,7 @@ jobs:
       - uses: actions/checkout@v2
       - uses: ruby/setup-ruby@v1
         with:
-          ruby-version: '2.6'
+          ruby-version: '3.2.2'
       - run: |
           gem install cocoapods