Test with Ruby 3.3 and 3.4

Author: rafaelfranca

.github/workflows/ci.yml

@@ -7,7 +7,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        ruby: ["2.7", "3.0", "3.1", "3.2"]
+        ruby: ["2.7", "3.0", "3.1", "3.2", "3.3", "3.4"]
         experimental: [false]
         include:
         - ruby: head