Update CI to include 3.4 (#4)

Author: jterapin

.github/workflows/ci.yml

@@ -10,15 +10,15 @@ on:
       - main
 
 env:
-  ruby_version: 3.3
+  ruby_version: 3.4
 
 jobs:
   test:
     runs-on: ubuntu-latest
     strategy:
       fail-fast: false
       matrix:
-        ruby: [2.7, '3.0', 3.1, 3.2, 3.3, jruby-9.4]
+        ruby: [2.7, '3.0', 3.1, 3.2, 3.3, 3.4, jruby-9.4, jruby-10.0]
         rails: [7.1, 7.2, '8.0', main]
 
         exclude: