ci: disable cache for jobs that don't use it

What does this MR do?

The code_quality and check mocks jobs don't actually use the cache but they waste time downloading the cache artifact.

This MR disable cache for the code_quality and check mocks jobs.

This is part of an effort to reduce CI minutes consumption in GitLab products

TODO

• I added the Changelog trailer (e.g. Changelog: added) to the commits that need to be included in the changelog
• I added unit tests or they are not required
• I added acceptance tests or they are not required
• I added documentation (or it's not required)
• I followed code review guidelines
• I followed Go Style guidelines