Re-enabled jruby.

Author: moozzi

.github/workflows/ruby.yml

@@ -14,7 +14,7 @@ jobs:
           - '3.2'
           - '3.3'
           - '3.4'
-          # - jruby
+          - jruby
           - truffleruby
     name: Ruby ${{ matrix.ruby }}
     steps: