logr support

[tpoxa]

I use https://github.com/go-logr/logr in my project. Is it supported by uptrace client? Thanks.

[vmihailenco]

Logr is just an interface which can't be used without some backend/implementation. As a backend we are currently using Zap, but even then this project probably does not emit any logs you should be worrying about.