stale pod: exceeded quota

Some stale pods can easily break build by reaching quota.

ERROR: Job failed (system failure): prepare environment: setting up build pod: pods "runner-gwnvskxt-project-2929-concurrent-0-quxul3m2" is forbidden: exceeded quota: ef-grac-technology-cbi-rq, requested: pods=1, used: pods=14, limited: pods=14. Check https://docs.gitlab.com/runner/shells/index.html#shell-profile-loading for more information
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