Add Pino transport

[luismiramirez]

A Pino transport is now exposed from the package
(AppsignalPinoTransport). It requires an initialized AppSignal client to work, and also accepts a group as an optional parameter.

Attributes are flattened so no data is lost.

Usage:

import pino from "pino"
import { Appsignal, AppsignalPinoTransport } from "@appsignal/nodejs"

const logger = pino(
  AppsignalPinoTransport({
    client: Appsignal.client,
    group: "my-group",
  })
)

Samples from a Fastify test app:

Simple request:

Error:

Part of #828

[luismiramirez]

Thanks @duailibe! I took inspiration from your https://github.com/duailibe/pino-appsignal-transport

[duailibe]

Glad it could be of some help!

Great work! I'll migrate from my own thing once this gets released