Is your feature request related to a problem? Please describe.

Alerts in /operations/mimir-mixin-compiled/alerts.yaml have not linked with their runbook (https://grafana.com/docs/mimir/next/operators-guide/mimir-runbooks) using annotations.runbook_url or similar

Describe the solution you'd like

Add annotations.runbook_url on each documented alert runbook.

Describe alternatives you've considered

Additional context

I think would be very useful to add runbook url to mimir alerts to use the official guide to resolve it.