ruby.yml in ey-hmac-2.3.1

- old
+ new

@@ -29,7 +29,9 @@
     # uses: ruby/setup-ruby@v1
       uses: ruby/setup-ruby@473e4d8fe5dd94ee328fdfca9f8c9c7afc9dae5e
       with:
         ruby-version: ${{ matrix.ruby-version }}
         bundler-cache: true # runs 'bundle install' and caches installed gems automatically
+    - name: Lint
+      run: bundle exec rubocop -D
     - name: Run tests
       run: bundle exec rspec