EE: Don't use ee/.gitlab/ for CI config files

What does this MR do?

These files are not available in CE, resulting in CI pipeline failures when trying to include these files. Since the job is already configured to only run on EE, we can just include it in both CE and EE.

CE backport: https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/32351

Does this MR meet the acceptance criteria?

Conformity

• Code review guidelines
• Merge request performance guidelines
• Style guides
• Database guides
• Separation of EE specific content