Uvicorn's default ws_ping_interval=20 / ws_ping_timeout=20 can
non-deterministically close local WebSocket connections (e.g. NWC provider
↔ nostrclient relay) under event-loop load. The client side already sends
its own pings, so server-side pings are redundant here.
See discussion:
https://github.com/lnbits/nostrclient/pull/71#issuecomment-4803033307