ci test: update Ruby versions

Author: kou

.github/workflows/test.yml

@@ -43,15 +43,12 @@ jobs:
           bundle exec rake
 
   scanner:
+    needs: ruby-versions
     name: "Scanner test: Ruby ${{ matrix.ruby-version }}: ${{ matrix.runs-on }}"
     strategy:
       fail-fast: false
       matrix:
-        ruby-version:
-          - "3.1"
-          - "3.0"
-          - "2.7"
-          - debug
+        ruby-version: ${{ fromJson(needs.ruby-versions.outputs.versions) }}
         runs-on:
           - macos-latest
           - ubuntu-latest
@@ -85,7 +82,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: ruby/setup-ruby@v1
         with:
-          ruby-version: 2.7
+          ruby-version: ruby
       - name: Install
         run: |
           rake install
@@ -105,7 +102,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: ruby/setup-ruby@v1
         with:
-          ruby-version: 2.7
+          ruby-version: ruby
           bundler-cache: true
       - name: Build document
         run: |