ci: test ruby 3.4

Author: lucaslima-cw

.github/workflows/test.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        ruby-version: [3.0, 3.1, 3.2, 3.3]
+        ruby-version: [3.0, 3.1, 3.2, 3.3, 3.4]
     steps:
       - name: Checkout
         uses: actions/checkout@v4