Delete old workflow runs configuration

Properties

rules (array)
- Items (object): A rule to filter the list of workflow runs.
  - older-than-days (integer, required)
  - workflow (string)
  - actor (string)
  - branch (string)
  - event (string)
  - status (string): Must be one of: "completed", "action_required", "cancelled", "failure", "neutral", "skipped", "stale", "success", "timed_out", "in_progress", "queued", "requested", "waiting", or "pending".