Bump ddtrace from 4.2.1 to 4.2.2

[dependabot]

Bumps ddtrace from 4.2.1 to 4.2.2.

Release notes

Sourced from ddtrace's releases.

4.2.2

Estimated end-of-life date, accurate to within three months: 05-2027 See the support level definitions for more information.

Bug Fixes

• LLM Observability
  • Resolves an issue where the langchain integration incorrectly marked openai responses as duplicate LLM spans even if there was a downstream LLM span generated by the openai integration.
  • litellm: This fix resolves an issue where litellm>=1.74.15 wrapped router streaming responses in FallbackStreamWrapper (introduced for mid-stream fallback support) that caused an AttributeError when attempting to access the .handler attribute. The integration now gracefully handles both the original response format and wrapped responses by falling back to ddtrace's own stream wrapping when needed.
• profiling
  • A bug where asyncio task stacks could contain duplicated frames when the task was on-CPU is now fixed. The stack now correctly shows each frame only once.
  • This fix resolves an issue where memory profiler flamegraphs were upside down.

Commits

• f8fe70a chore: update pyproject version to 4.2.2 (#16150)
• 1f523ca fix(litellm): handle FallbackStreamWrapper in router streaming responses [bac...
• 8fbdd84 test(llmobs): make agentless writer tests resilient to backend error message ...
• d7944cc fix(profiling) improve stacked Task Profiles [backport 4.2] #16118 (#16127)
• d6c9331 fix(profiling): memory profiler flamegraphs are upside down [backport 4.2] (#...
• 80c71f0 test(profiling): unflake test_call_script_pprof_output [backport 4.2] (#16063)
• c548d7c fix(langchain): remove openai response parsing span recolor logic [backport 4...
• d1f150d test(profiling): reduce flakiness of buffer_pool_exhaustion test [backport ...
• 57de99a test(profiling): unflake test_multiprocessing [backport 4.2] (#16024)
• See full diff in compare view

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
⚠️ Please upload report for BASE (main@c17bed8). Learn more about missing BASE report.
⚠️ Report is 3 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff            @@
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  Coverage        ?   100.00%           
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  Files           ?       208           
  Lines           ?     13430           
  Branches        ?       517           
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  Hits            ?     13430           
  Misses          ?         0           
  Partials        ?         0           

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