Using prebuilt wheel for dd-trace-py

[nccatoni]

Motivation

In the current dev pipeline, the Python tracer is compiled from source. This requires adding build dependencies to the image and waiting for the compilation step on every run, which increases complexity and slows down the workflow.

By switching to a prebuilt wheel, we eliminate these issues:

• No need to install build dependencies in the image.
• Faster builds.

Changes

Updated load-binary.sh to fetch a prebuilt wheel from the dd-trace-py CI workflow.

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

[cbeauchesne]

The dev run is not seing the whl file : https://github.com/DataDog/system-tests/actions/runs/17261437588/job/48983712055?pr=5146#step:8:113

I guess the whl is not saved in the artifact :