fix(ci-visibility): proper test suite status with xdist [backport 3.7]

[github-actions]

Backport 83dea4c from #13414 to 3.7.

CI Visibility: This fix resolves an issue where ddtrace pytest plugin used with pytest-xdist would report test suites as failing even when all tests pass.

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:

releasenotes/notes/ci-vis-xdist-suite-failing-3a0c20b8379f10e4.yaml     @DataDog/apm-python
tests/contrib/pytest/test_pytest_xdist_snapshot.py                      @DataDog/ci-app-libraries
tests/snapshots/tests.contrib.pytest.test_pytest_xdist_snapshot.test_pytest_xdist_will_include_lines_pct.json  @DataDog/apm-python
tests/snapshots/tests.contrib.pytest.test_pytest_xdist_snapshot.test_pytest_xdist_with_ddtrace_patch_all.json  @DataDog/apm-python
tests/snapshots/tests.contrib.pytest.test_pytest_xdist_snapshot.test_pytest_xdist_wont_include_lines_pct_if_report_empty.json  @DataDog/apm-python
ddtrace/contrib/internal/pytest/_plugin_v2.py                           @DataDog/ci-app-libraries
ddtrace/internal/ci_visibility/api/_base.py                             @DataDog/ci-app-libraries

[github-actions]

Bootstrap import analysis

Comparison of import times between this PR and base.

Summary

The average import time from this PR is: 231 ± 2 ms.

The average import time from base is: 234 ± 2 ms.

The import time difference between this PR and base is: -2.62 ± 0.09 ms.

Import time breakdown

The following import paths have grown:

ddtrace.auto 0.014 ms (0.01%)

ddtrace 0.014 ms (0.01%)

ddtrace._monkey 0.014 ms (0.01%)

ddtrace.appsec._listeners 0.014 ms (0.01%)

ddtrace.appsec 0.014 ms (0.01%)

The following import paths have shrunk:

ddtrace.auto 2.062 ms (0.89%)

ddtrace.bootstrap.sitecustomize 1.356 ms (0.59%)

ddtrace.bootstrap.preload 1.356 ms (0.59%)

ddtrace.internal.products 1.356 ms (0.59%)

ddtrace.internal.remoteconfig.client 0.666 ms (0.29%)

ddtrace 0.706 ms (0.31%)

ddtrace._logger 0.036 ms (0.02%)

logging 0.036 ms (0.02%)

traceback 0.036 ms (0.02%)

contextlib 0.036 ms (0.02%)

[pr-commenter]

Benchmarks

Benchmark execution time: 2025-05-16 19:29:16

Comparing candidate commit 6cf0bbc in PR branch backport-13414-to-3.7 with baseline commit aa2c619 in branch 3.7.

Found 0 performance improvements and 3 performance regressions! Performance is the same for 504 metrics, 5 unstable metrics.

scenario:iast_aspects-lstrip_aspect

• 🟥 execution_time [+1.567µs; +1.685µs] or [+11.923%; +12.822%]

scenario:iast_aspects-rsplit_aspect

• 🟥 execution_time [+143.409ns; +175.778ns] or [+9.726%; +11.921%]

scenario:iast_aspects-upper_aspect

• 🟥 execution_time [+177.272ns; +225.910ns] or [+7.840%; +9.991%]