node: Investigate an inefficiency noticed in devnet

[goshawk-3]

Summary

After less than 4200 blocks, it was noticed that a devnet of 100 eligible provisioners created a block from an emergency iteration. There are no obvious explanation for the inefficiency. The culprit could be either a glitch in the VPS provider or an unhandled edge case.

Detailed Description (optional)

{"timestamp":"2024-09-26T08:41:25.317528Z","level":"INFO","event":"Quorum","src":"emergency_iter","msg_iteration":16,"vote":"Vote: Valid(b2939f0cf9af624c...ed6bbd8e344a5586)","target":"dusk_consensus::execution_ctx","spans":[{"iter":17,"name":"Validation","pk":"txesrFKYx2Ea7foB","round":4183,"name":"main"}]}

{"timestamp":"2024-09-26T09:26:35.799867Z","level":"INFO","event":"block accepted","height":4183,"iter":16,"hash":"b2939f0cf9af624c...ed6bbd8e344a5586","txs":0,"state_hash":"ef1b54807c8d53c8...ef839ff579d6562f","fsv_bitset":140735321733048,"ssv_bitset":456260682623714,"block_time":419,"generator":"yomfztR36C81wr31","dur_ms":"24","label":"Accepted(30)","target":"node::chain::acceptor"}

Expected behavior

In normal conditions, the network should have created 4100 or more blocks at iteration 0 with block time of 10s.