monitoring: allow worker duration prometheus buckets to be configurable
Created by: Strum355
Executors are the first user of the configurable API, with buckets of 30s, 1m, 2.5m, 5m, 7.5m, 10m, 15m, 20m, 30m, 45m, 1hr as opposed to the upper limit bucket of 10s into which basically everything was placed, so we got nothing of value there (see screenshot below).
But no more