fix(profiling): explicitly link with thread library [backport-2.12]

[taegyunkim]

Manual backport of #10994 to 2.12

python:3.11-bookworm image for aarch64 has pthread_atfork in static libpthread.a not in libpthread.so so need to explicitly link for those cases. Otherwise, we get undefined symbol pthread_atfork.

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

[datadog-dd-trace-py-rkomorn]

Datadog Report

Branch report: backport-10994-to-2.12
Commit report: c534f0f
Test service: dd-trace-py

✅ 0 Failed, 3764 Passed, 46 Skipped, 1h 28m 16.13s Total duration (10m 20.03s time saved)

[pr-commenter]

Benchmarks

Benchmark execution time: 2024-10-11 10:28:57

Comparing candidate commit c534f0f in PR branch backport-10994-to-2.12 with baseline commit f4be357 in branch 2.12.

Found 0 performance improvements and 0 performance regressions! Performance is the same for 353 metrics, 47 unstable metrics.