feat: axum testserver & higher concurrent (#3)

* 50k conns?

* rm: json parsing on testserver

* huge backlog

* allow get

* log concurrent

* limit to 1 worker

* 50 workers

* feat: hyper

* fix?

* actix -> axum

* Update main.rs

* rm batch factor

* 3 second measurement interval

* Update main.rs

* worker id

* request durr

* fix: workers

* Update network.rs

* fix ids

* feat: implied total rps

* Update network.rs

* Update network.rs

Author: transmissions11