CI: enable bundler cache

Author: byroot

.github/workflows/ci.yml

@@ -39,25 +39,25 @@ jobs:
           - { os: windows-latest, ruby: jruby }
           - { os: windows-latest, ruby: jruby-head }
 
+    env:
+      BUNDLE_WITHOUT: benchmark
+
     steps:
       - uses: actions/checkout@v5
 
       - name: Set up Ruby
         uses: ruby/setup-ruby-pkgs@v1
         with:
+          bundler-cache: true
           ruby-version: ${{ matrix.ruby }}
           apt-get: "${{ startsWith(matrix.ruby, 'jruby') && 'ragel' || '' }}"
           brew: "${{ startsWith(matrix.ruby, 'jruby') && 'ragel' || '' }}"
 
-      - run: |
-          bundle config --without benchmark
-          bundle install
-
-      - run: rake compile ${{ matrix.env }}
+      - run: bundle exec rake compile ${{ matrix.env }}
 
-      - run: rake test JSON_COMPACT=1 ${{ matrix.env }}
+      - run: bundle exec rake test JSON_COMPACT=1 ${{ matrix.env }}
 
-      - run: rake build
+      - run: bundle exec rake build
 
       - run: gem install pkg/*.gem
         if: ${{ matrix.ruby != '3.2' }}