Add Rails 7.1

[lloeki]

Motivation

missing coverage

Changes

add rails 7.1 on ruby 3.2 + rack 3 + puma 6

Workflow

1. ⚠️ Create your PR as draft ⚠️
2. Work on you PR until the CI passes (if something not related to your task is failing, you can ignore it)
3. Mark it as ready for review
   • Test logic is modified? -> Get a review from RFC owner. We're working on refining the codeowners file quickly.
   • Framework is modified, or non obvious usage of it -> get a review from R&P team

🚀 Once your PR is reviewed, you can merge it!

🛟 #apm-shared-testing 🛟

Reviewer checklist

• Relevant label (run-parametric-scenario, run-profiling-scenario...) are presents
• No system-tests internal is modified. Otherwise, I have the approval from R&P team
• CI is green, or failing jobs are not related to this change (and you are 100% sure about this statement)
• A docker base image is modified?
  • the relevant build-XXX-image label is present
  • To R&P team: locally build and push the image to hub.docker.com
• A scenario is added (or removed)?
  • Get a review from R&P team
  • Once merged, add (or remove) it in system-test-dasboard nightly

[ivoanjo]

This looks reasonable to me. I don't know a lot about system-tests, but can confirm this is effectively a copy paste of the Rails 7.0 image, updated to 7.1 and with Ruby 3.2.

[ivoanjo]

Minor:

Suggested change

	```
	```bash

[lloeki]

effectively a copy paste

Yeah given the timing I outright copied the app code from 7.0, while in a perfect world this should be a brand new app as generated by rails new then later cleaned up to be minimal. Luckily 7.0 and 7.1 are quite close so that's not too much of a problem.

[lloeki]

IIUC Rails 4.2 failure is solved by DataDog/dd-trace-rb#3541

[cbeauchesne]

it's failing on some ruby runs, but I don't know if it's related ?

[lloeki]

The rails42 ones are because of DataDog/dd-trace-rb#3542

The rails40 prod should be unrelated as well, it just failed to start the container for some reason and there's no reason it wouldn't start yet still start for all other scenarios + for dev on the same scenario.

[cbeauchesne]

ok, approving