feat(build): add Ruby 3.4 to CI matrix (#1780)

Author: ydah

.github/workflows/build.yml

@@ -13,6 +13,7 @@ jobs:
         ruby:
           - jruby-9.4
           - truffleruby
+          - "3.4"
           - "3.3"
           - "3.2"
           - "3.1"