use ruby/actions/.github/workflows/ruby_versions.yml

Author: kenichiice

.github/workflows/test.yml

@@ -7,12 +7,15 @@ on:
   schedule:
     - cron: '34 18 * * *'
 jobs:
+  ruby-versions:
+    uses: ruby/actions/.github/workflows/ruby_versions.yml@master
   rake-test:
+    needs: ruby-versions
     strategy:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
-        ruby: [head, 3.1, 3.0, 2.7, 2.6, jruby, truffleruby]
+        ruby: ${{ fromJson(needs.ruby-versions.outputs.versions) }}
         exclude:
           - os: windows-latest
             ruby: jruby