Remove unnecessary needs for review-app

What does this MR do and why?

Describe in detail what your merge request does and why.

review-app tests do not require gitlab-qa image anymore as they are executed directly from the repo code using the same base image gitlab-qa image is built from.

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

• I have evaluated the MR acceptance checklist for this MR.