Remove Ruby versions unsupported by GitHub

Author: jcoglan

.github/workflows/test.yml

@@ -8,9 +8,6 @@ jobs:
       fail-fast: false
       matrix:
         ruby:
-          - ruby-2.0
-          - ruby-2.1
-          # - ruby-2.2
           - ruby-2.3
           - ruby-2.4
           - ruby-2.5
@@ -21,8 +18,6 @@ jobs:
           - ruby-3.2
           - ruby-3.3
           - ruby-3.4
-          - jruby-9.1
-          - jruby-9.2
           - jruby-9.3
           - jruby-9.4
     runs-on: ubuntu-latest