Doppler change history: Unable to sync secrets, webhooks, and activity log notifications

Doppler reported a major partial outage blocking secret syncs, webhooks, activity-log notifications, and API-client secret updates. Records list a start of 2023-01-16 20:37 UTC and resolution at 2023-01-16 19:11 UTC, while the postmortem reports 2023-01-16 19:11 UTC to 2023-01-16 20:04 UTC; duration is unknown.