chore: Update link to ci_pending_builds runbook
What
Fix broken link to Large number of CI pending builds index entry, as per Corrective Action gitlab-com/gl-infra/production-engineering#25206 (moved)
Edited by Lucas Charles
Fix broken link to Large number of CI pending builds index entry, as per Corrective Action gitlab-com/gl-infra/production-engineering#25206 (moved)