refactor(ipld): migrate metrics scheme

[LePremierHomme]

Closes #1093

Current work contains the migration to the event-based architecture.
Still need to evaluate the usefulness of each metric.

[karlem]

Thanks @LePremierHomme! I took a quick look, and overall it looks good. I may have more comments tomorrow. We will also need to add these events to the documentation and ensure that the traces produce user-friendly output.

[LePremierHomme]

I added domain namespace prefix to the traces, although it's not applied elsewhere.
So it looks like this now:

2024-11-20T05:13:52.295725Z  INFO tracing_event: domain="IPLD_Resolver/Ping" event=Success(PeerId("1AkHsDuvAgj8ZAAgGaaqw82CMRU6e7ii2WA4XmXDsj1qkQ"), 500ms)
2024-11-20T05:13:52.296359Z  WARN tracing_event: domain="IPLD_Resolver/Ping" event=Timeout(PeerId("1AkHsDuvAgj8ZAAgGaaqw82CMRU6e7ii2WA4XmXDsj1qkQ"))
2024-11-20T05:13:52.296402Z  WARN tracing_event: domain="IPLD_Resolver/Ping" event=Failure(PeerId("1AkHsDuvAgj8ZAAgGaaqw82CMRU6e7ii2WA4XmXDsj1qkQ"), "err")

As for the docs, I'll add it as the final step once we're done with the review.