refactor: use tracing's structured logging

[aatifsyed]

#4143

Semi-automated with https://github.com/aatifsyed/synsert/blob/5f7d39c1ff1ae47d2b028b045378197036a71fa1/examples/tracing.rs

Change checklist

• [x] I have performed a self-review of my own code,
• [ ] I have made corresponding changes to the documentation,
• [ ] I have added tests that prove my fix is effective or that my feature works (if possible),
• [ ] I have made sure the CHANGELOG is up-to-date. All user-facing changes should be reflected in this document.

[aatifsyed]

$ git diff main | cat | rg '@@' | wc -l
182

So many call sites

[LesnyRumcajs]

I'll look into tracing docs and get back to you here.

[LesnyRumcajs]

@aatifsyed what do we do with this draft?