Integrate feral-lambda with otel4s

[armanbilge]

Building on #339, we can then integrate otel4s directly into IOLambda, following these additional semantic conventions:

• https://opentelemetry.io/docs/reference/specification/trace/semantic_conventions/instrumentation/aws-lambda/

[alexcardell]

@armanbilge I am happy to have a go at this, given the otel4s SDK looks to land soon

What are your thoughts on pulling out a natchez module, and supporting both for the near term?

[armanbilge]

What are your thoughts on pulling out a natchez module, and supporting both for the near term?

This seems like a smart idea, nice! I see you already got a PR up. @bpholt wdyt?

[bpholt]

Sounds like a great idea to me! Thanks for submitting the PR @alexcardell.

[alexcardell]

The module on its own doesn't seem valuable and an unnecessary breaking change, I've closed it for now and included it in #459

Up to you guys if you want to reopen and include it in the next breaking, then the otel4s module could be a patch