Improve Ruby versions support

Try to test with Ruby 3.2 and 3.3

.github/workflows/main.yml

@@ -15,7 +15,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        ruby: ["3.1", "3.0"]
+        ruby: ["3.0", "3.1", "3.2", "3.3"]
 
     steps:
     - uses: actions/checkout@v4