GH Actions: remove RuboCop debugging options

Author: generalmimon

.github/workflows/build.yml

@@ -26,7 +26,7 @@ jobs:
  - name: test
  run: bundle exec rspec --force-color
  - name: rubocop
- run: bundle exec rubocop --no-parallel --debug --color || true
+ run: bundle exec rubocop --color || true
  - name: check for .editorconfig violations in non-Ruby files
  # RuboCop has already checked Ruby files for issues that editorconfig-checker
  # checks for, so we're excluding Ruby files here.