[metrics-alerts] Relays per nickname prefix MEDIUM More than 10 relays have joined the network with the nickname prefix NotMy

Total firing alerts: 1 ## Firing Alerts ----- Time: 2026-09-27 19:43:27.544 +0000 UTC Summary: More than 10 relays have joined the network with the nickname prefix NotMy Description: More than 10 relays have joined the network with the nickname prefix NotMy in the last 2 hours. playbook: TODO title: Too many relays have joined the network with the same nickname prefix in the last 2 hours -----