Perform load test with Musa

[iand]

Migrated from libp2p/go-libp2p-kad-dht#883

Deploy Musa and ramp up the number of FIND_NODE RPCs. Find out when it breaks down and if there's a memory leak.

This infrastructure could be used to periodically check if we introduced a regression.

From comment:

Production load test? https://github.com/protocol/bifrost-infra/issues/2766 🙈

Asked in #libp2p-impelementers channel: https://filecoinproject.slack.com/archives/C03K82MU486/p1695125179210719