replace specific jruby and truffleruby version by the latest one

Author: PetrHeinz

.github/workflows/main.yml

@@ -24,10 +24,8 @@ jobs:
           - "2.7"
           - "2.6"
           - "2.5"
-          - "jruby-9.4.3.0"
-          - "jruby-9.2.14.0"
-          - "truffleruby-23.0.0"
-          - "truffleruby-22.1.0"
+          - "jruby"
+          - "truffleruby"
 
     steps:
       - uses: actions/checkout@v2