Pin Ruby version to 3.2

Author: rolandgeider

.github/workflows/build-release.yml

@@ -20,7 +20,7 @@ jobs:
       - name: Setup Ruby
         uses: ruby/setup-ruby@v1
         with:
-          ruby-version: 3
+          ruby-version: '3.2'
 
       - name: Setup Flutter
         uses: subosito/flutter-action@v2