Merge pull request #9 from kenichiice/workflow

テスト対象とするRubyのバージョンを更新

Author: kenichiice

.github/workflows/test.yml

@@ -12,12 +12,10 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
-        ruby: [head, 2.7, 2.6, 2.5, 2.4, 2.3, jruby, truffleruby]
+        ruby: [head, 3.1, 3.0, 2.7, 2.6, jruby, truffleruby]
         exclude:
           - os: windows-latest
-            ruby: 2.4
-          - os: windows-latest
-            ruby: 2.3
+            ruby: 3.1
           - os: windows-latest
             ruby: truffleruby
     runs-on: ${{ matrix.os }}