ci: fix bm test to reflect behavior of config for propagation

[ZStriker19]

This fixes the benchmarking test to reflect the config change made in this PR: #11925

It also updates the config behavior slightly since the removing of "none" propagation style at the end of the loop was repetitive since we were already excluding that value.

Checklist

• PR author has checked that all the criteria below are met
• The PR description includes an overview of the change
• The PR description articulates the motivation for the change
• The change includes tests OR the PR description describes a testing strategy
• The PR description notes risks associated with the change, if any
• Newly-added code is easy to change
• The change follows the library release note guidelines
• The change includes or references documentation updates if necessary
• Backport labels are set (if applicable)

Reviewer Checklist

• Reviewer has checked that all the criteria below are met
• Title is accurate
• All changes are related to the pull request's stated goal
• Avoids breaking API changes
• Testing strategy adequately addresses listed risks
• Newly-added code is easy to change
• Release note makes sense to a user of the library
• If necessary, author has acknowledged and discussed the performance implications of this PR as reported in the benchmarks PR comment
• Backport labels are set in a manner that is consistent with the release branch maintenance policy

[github-actions]

CODEOWNERS have been resolved as:

benchmarks/http_propagation_extract/scenario.py                         @DataDog/apm-core-python
ddtrace/settings/config.py                                              @DataDog/python-guild @DataDog/apm-sdk-api-python

[datadog-dd-trace-py-rkomorn]

Datadog Report

Branch report: zachg/chore_fix_prop_test
Commit report: b2247eb
Test service: dd-trace-py

✅ 0 Failed, 130 Passed, 1468 Skipped, 4m 45.19s Total duration (35m 42.76s time saved)

[pr-commenter]

Benchmarks

Benchmark execution time: 2025-01-23 18:04:38

Comparing candidate commit b2247eb in PR branch zachg/chore_fix_prop_test with baseline commit dc7037e in branch main.

Found 1 performance improvements and 0 performance regressions! Performance is the same for 393 metrics, 2 unstable metrics.

scenario:httppropagationextract-none_propagation_style

• 🟩 execution_time [-4.228µs; -4.183µs] or [-72.416%; -71.646%]