.github/workflows/ruby.yml in fast_jsonparser-0.5.0 vs .github/workflows/ruby.yml in fast_jsonparser-0.6.0

@@ -15,19 +15,20 @@
 
 jobs:
   test:
 
     runs-on: ubuntu-latest
+    
+    strategy:
+      matrix:
+        ruby-version: [3.0.1, 2.7.3, 2.6.7, 2.6.5]
 
     steps:
     - uses: actions/checkout@v2
-    - name: Set up Ruby
-    # To automatically get bug fixes and new Ruby versions for ruby/setup-ruby,
-    # change this to (see https://github.com/ruby/setup-ruby#versioning):
-    # uses: ruby/setup-ruby@v1
-      uses: ruby/setup-ruby@ec106b438a1ff6ff109590de34ddc62c540232e0
+    - name: Set up Ruby ${{ matrix.ruby-version }}
+      uses: ruby/setup-ruby@v1
       with:
-        ruby-version: 2.6
+        ruby-version: ${{ matrix.ruby-version }}
     - name: Install dependencies
       run: bundle install
     - name: Compile
       run: bundle exec rake compile
     - name: Run tests