drupal-quality-checker is not maintained anymore

Problem/Motivation

The latest commit was 4 years ago: https://github.com/vijaycs85/drupal-quality-checker

Steps to reproduce

Proposed resolution

It should be removed from composer.json and the grumphp.yml config also removed.
A followup could be to use the new .gitlab-ci.yml template: https://www.drupal.org/docs/develop/git/using-gitlab-to-contribute-to-dr... →

Remaining tasks

User interface changes

API changes

Data model changes