Ably change history: Elevated Realtime errors in EU regions

Ably reported a major incident with elevated Realtime errors affecting Pub/Sub Channels in Europe (Frankfurt) and Europe (Ireland), plus Push Notifications in Europe (Ireland). It started at 2025-08-13 12:47 UTC and was resolved at 2025-08-13 13:25 UTC; the computed duration was 37 min. No cause or specific fix was stated.