Fix CMP-Test Docker Container Build

[Guiliano99]

The cmp-test Docker container includes the current codebase and therefore must be rebuilt for every merge request. In contrast, the base container only needs to be updated when its dependencies change.

[Guiliano99]

@ralienpp What’s your preferred approach to fix this?

• Create a new pipeline that runs only when requirements* files haven’t changed, or
• Update the existing pipeline to skip the other two build jobs and run only this one after a PR is merged?