Update codeclimate to 0.85.1

Update codeclimate from 0.83.0 (released on 2019-01-19) to 0.85.1 (released on 2019-03-29).

• Diff: https://github.com/codeclimate/codeclimate/compare/v0.83.0...v0.85.1
• Changelogs:
  • https://github.com/codeclimate/codeclimate/releases/tag/v0.84.0
  • https://github.com/codeclimate/codeclimate/releases/tag/v0.85.0
  • https://github.com/codeclimate/codeclimate/releases/tag/v0.85.1

cf. #13 (closed) (!21 (merged))