<!--IssueSummary start--> <details> <summary> Everyone can contribute. [Help move this issue forward](https://handbook.gitlab.com/handbook/marketing/developer-relations/contributor-success/community-contributors-workflows/#contributor-links) while earning points, leveling up and collecting rewards. </summary> - [Close this issue](https://contributors.gitlab.com/manage-issue?action=close&projectId=278964&issueIid=385260) </details> <!--IssueSummary end--> * Epic: https://gitlab.com/groups/gitlab-org/-/epics/9313 * After https://gitlab.com/gitlab-org/gitlab/-/issues/383458+ is introduced. ### Problem The new Redis wrapper provides extra features and maintains the structured Redis key format. But we have many cases when `Rails.cache` is used. ### Solution Add a Rubocop rule to notify developers about `Rails.cache` deprecation.