Exclude older than 2.6 on macos-14

Author: nobu

.github/workflows/test.yml

@@ -16,6 +16,7 @@ jobs:
         ruby: ${{ fromJson(needs.ruby-versions.outputs.versions) }}
         os: [ 'ubuntu-latest', 'macos-latest', 'windows-latest' ]
         exclude:
+          - { os: macos-latest, ruby: 2.5 }
           - { os: windows-latest, ruby: 'truffleruby' }
           - { os: windows-latest, ruby: 'truffleruby-head' }
           - { os: windows-latest, ruby: 'jruby-head' }