Exclude Ruby 2.5 from macos-latest that is macos-14

Author: hsbt

.github/workflows/test.yml

@@ -15,6 +15,9 @@ jobs:
       matrix:
         ruby: ${{ fromJson(needs.ruby-versions.outputs.versions) }}
         os: [ ubuntu-latest, macos-latest ]
+        exclude:
+          - ruby: 2.5
+            os: macos-latest
     runs-on: ${{ matrix.os }}
     steps:
     - uses: actions/checkout@v4