[nodejs] Enable resource renaming tests for Node.js

[IlyasShabi]

Motivation

Enable resource renaming tests for Node.js on express and fastify weblogs

Ref: DataDog/dd-trace-js#6861

Changes

• Enable tests
• Create /resource_naming handler in weblogs

Workflow

1. ⚠️ Create your PR as draft ⚠️
2. Work on you PR until the CI passes
3. Mark it as ready for review
   • Test logic is modified? -> Get a review from RFC owner.
   • Framework is modified, or non obvious usage of it -> get a review from R&P team

🚀 Once your PR is reviewed and the CI green, you can merge it!

🛟 #apm-shared-testing 🛟

Reviewer checklist

• If PR title starts with [<language>], double-check that only <language> is impacted by the change
• No system-tests internal is modified. Otherwise, I have the approval from R&P team
• A docker base image is modified?
  • the relevant build-XXX-image label is present
• A scenario is added (or removed)?
  • Get a review from R&P team

[IlyasShabi]

DD_TRACE_STATS_COMPUTATION_ENABLED is the right env var for all tracers
@florentinl

[IlyasShabi]

Enabling appsec will also enable resource renaming without the need of adding new env var and with the help of http.createServer flexibility that Node.js offers for Express/Fastify

[github-actions]

CODEOWNERS have been resolved as:

manifests/nodejs.yml                                                    @DataDog/dd-trace-js
tests/test_resource_renaming.py                                         @DataDog/system-tests-core
utils/_context/_scenarios/__init__.py                                   @DataDog/system-tests-core
utils/build/docker/nodejs/express/app.js                                @DataDog/dd-trace-js @DataDog/system-tests-core
utils/build/docker/nodejs/express4-typescript/app.ts                    @DataDog/dd-trace-js @DataDog/system-tests-core
utils/build/docker/nodejs/fastify/app.js                                @DataDog/dd-trace-js @DataDog/system-tests-core

[cbeauchesne]

Setting this PR as draft to unstress my notifications 😉