Try with macOS and Windows

Author: hsbt

.github/workflows/test.yml

@@ -14,12 +14,10 @@ jobs:
     strategy:
       matrix:
         ruby: ${{ fromJson(needs.ruby-versions.outputs.versions) }}
-        os: [ 'ubuntu-latest' ]
-        include:
-          - { os: macos-latest, ruby: 'head' }
-          - { os: macos-latest, ruby: 'jruby-head' }
-          - { os: macos-latest, ruby: 'truffleruby-head' }
-          - { os: windows-latest, ruby: 'head' }
+        os: [ 'ubuntu-latest', 'macos-latest', 'windows-latest' ]
+        exclude:
+          - { os: windows-latest, ruby: 'truffleruby' }
+          - { os: windows-latest, ruby: 'truffleruby-head' }
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v3