Update registry.gitlab.com/gitlab-org/security-products/codequality to 12-5-stable to update codeclimate to 0.85.5

Update codeclimate from 0.85.4 (released on 2019-06-07) to 0.85.2 (released on 2019-08-15) mainly to support Rubocop 0.74:

This results in removal of the following deprecation warning:

Digest: sha256:ec33032668fd3f687187d903cc5327462ba84357953b0d674caddb47e222d3dc
Status: Downloaded newer image for codeclimate/codeclimate:0.85.2
WARNING: A new version (v0.85.5) is available. Upgrade instructions are available at: https://github.com/codeclimate/codeclimate#packages

Upstream changes

• Diff: https://github.com/codeclimate/codeclimate/compare/v0.85.4...v0.85.5
• Changelogs:
  • https://github.com/codeclimate/codeclimate/releases/tag/v0.85.5

cf.

• gitlab-org/security-products/codequality#22 (closed) (gitlab-org/security-products/codequality!34 (merged))