Add a one-off policy to merge value stream analytics labels
Dry-run: https://gitlab.com/gitlab-org/quality/triage-ops/-/jobs/816684210
Expected impact:
- Open issues: 65
- Closed issues: 136
- Open MRs: 0
- Closed MRs: 11
- Merged MRs: 118
Related to #594 (closed).
Edited by Rémy Coutable