Task: Reduce artifacts in GitLab

[DanielSiepmann]

Goal

Reduce disk usage by artifacts within GitLab.
Stephan Großberndt reported our repo is using more than 2 GiB on disk space due to artifacts.

Acceptance Criteria

• I am sorry and can't provide concrete numbers. For now I'd say we should remove all artifacts older than 5 days? But I'm open for discussion.

Additional Information

I've already disabled "Keep artifacts from most recent successful jobs" within the repository, see: https://git.typo3.org/help/ci/jobs/job_artifacts#keep-artifacts-from-most-recent-successful-jobs for docs.

But we still have expire_in: 2 weeks within https://git.typo3.org/qa/example-extension/-/blob/main/.gitlab/pipeline/jobs/build-composer-dependencies.yml?ref_type=heads and maybe other values in other files.

And I'm currently removing old artifacts by hand.

[DanielSiepmann]

@lukaszuznanski I guess you have most experience in that area. Would you be willing to investigate and adjust the CI? Let me know if you need further info or support.