Does not work with GitLab CI

Trying to use this on GitLab CI:

.gitlab-ci.yml
```yml
ansible-lint:
  image: cytopia/ansible-lint
  stage: lint
  script:
    - ansible-lint -R -x idempotency,ANSIBLE0010 *.yml --nocolor
```

Output from GitLab CI:

```
WARNING: Couldn't open sh - No such file or directory
```