Skip CI for new Ruby and old Rails and vice versa

Author: UweKubosch

.github/workflows/ruby.yml

@@ -29,8 +29,11 @@ jobs:
         ruby-version: [ '3.1', '3.0', '2.7', '2.6' ]
         gemfile: [ '7.0', '6.1', '6.0', '5.2', 'edge' ]
         exclude:
+          - { ruby-version: '3.1', gemfile: "6.0" }
+          - { ruby-version: '3.1', gemfile: "5.2" }
           - { ruby-version: '3.0', gemfile: "5.2" }
           - { ruby-version: '2.6', gemfile: "edge" }
+          - { ruby-version: '2.6', gemfile: "7.0" }
     env:
       BUNDLE_GEMFILE: gemfiles/${{ matrix.gemfile }}.gemfile
     steps: