Also run tests on JRuby 9.4.1.0

Author: jnbt

.github/workflows/build.yml

@@ -11,6 +11,7 @@ jobs:
           - "3.0"
           - "3.1"
           - "jruby-9.3.10.0"
+          - "jruby-9.4.1.0"
     steps:
       - uses: actions/checkout@v3
       - uses: ruby/setup-ruby@v1