Merge pull request #17 from substancelab/github_actions

Run just the tests as part of the "Run tests" step

Author: koppen

.github/workflows/ruby.yml

@@ -33,4 +33,4 @@ jobs:
         bundler-cache: true # runs 'bundle install' and caches installed gems automatically
         bundler: 2.4.22 # For Ruby 2.7 compatibility
     - name: Run tests
-      run: bundle exec rake
+      run: bundle exec rake test