[v4.0.1](https://github.com/status-im/nim-chronos/compare/v4.0.0...v4.0.1 -) tagged:
* removes usage of `sink` ([currently broken](https://github.com/nim-lang/Nim/issues/23354) in all Nim versions, both refc/arc) * fixes some circular refs in timers for better ARC support * fixes a bunch of random bugs
