Export incident.io metrics for customer experience dashboards
## Problem
We currently have incident metrics for MTTx (mean and median incident duration) available in two locations:
- The incident.io insights dashboard: https://app.incident.io/gitlab/insights/dashboards/core/mttx
- Exported Slack reports in the #saas_availability channel
However, we need this data integrated into our standard dashboards alongside other customer experience SLIs for better visibility and centralized monitoring.
## Proposed Solution
Export or scrape the MTTx metrics data from incident.io to a source that can be consumed by our standard dashboard infrastructure.
***
_Description was generated using AI_
issue