build(deps-dev): Update ddtrace requirement from <3.0,>=2.0 to >=2.0,<5.0 in /packages/agent-sre

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Updates the requirements on ddtrace to permit the latest version.

Release notes

Sourced from ddtrace's releases.

4.6.5

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

Bug Fixes

• CI Visibility: Fixes an issue where HTTP 429 (Too Many Requests) responses from the Datadog backend were treated as non-retriable errors, causing CI visibility data to be dropped when the backend applied rate limiting. The backend connector now retries on 429 responses and respects the X-RateLimit-Reset header when present to determine the retry delay.

• internal: A bug preventing certain periodic threads of ddtrace (like the profile uploader) from triggering in fork-heavy applications has been fixed.

• profiling: Fixes an issue where setting an unlimited stack size (ulimit -s unlimited) on Linux caused the stack profiler sampling thread to fail to start, resulting in empty CPU and wall-time profiles. #17132

Changelog

Sourced from ddtrace's changelog.

Changelog

Changelogs for versions not listed here can be found at https://github.com/DataDog/dd-trace-py/releases

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3.8.0

New Features

• LLM Observability: add processor capability to process span inputs and outputs. See usage documentation [here](https://docs.datadoghq.com/llm_observability/setup/sdk/python/#span-processing).
• CI Visibility: This introduces the ability to gzip the payload when using the evp proxy setup, incurring in less network bandwith consumption.
• Error Tracking: Introduces automatic reporting of handled exceptions. Enabling the feature will report handled exceptions to Error Tracking from the user code, the third party packages code, some specified modules or everything based on configuration. This feature can be controlled using two environment variables: - DD_ERROR_TRACKING_HANDLED_ERRORS=`allthird_party` - DD_ERROR_TRACKING_HANDLED_ERRORS_INCLUDE=`module1, module2, module3.submodule`
• Code Security: IAST support for langchain v0.1.0 and above.
• openai: This introduces tracing support for the OpenAI Responses endpoint.

Bug Fixes

• tracing: Fixes an issue where truncation of span attributes longer than 25000 characters would not consistently count the size of UTF-8 multibyte characters, leading to a unicode string is too large error.

• CI Visibility: This fix resolves an issue where the DD_CIVISIBILITY_ITR_ENABLED was not honored properly.

• tracing: Fixes a bug in distributed tracing where pickling ddtrace.trace.Context fails in coroutines. This regression was introduced in v3.7.0.

• CI Visibility: This fix resolves an issue where pytest-xdist would not exit with the proper status code if ATR was enabled.

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

• profiling: fixed an issue in the SynchronizedSamplePool where pool could be null when calling into ddog_ArrayQueue_ functions, leading to segfaults in the uWSGI shutdown

• Code Security: IAST: Avoid excessive filtering of stacktrace locations when finding vulnerabilities. After this change, vulnerabilities that were previously discarded will now be reported. In particular, if they were found within code in site-packages or outside of the working directory.

• LLM Observability: Resolves an issue where spans and evaluation metrics were not being sent via Unix sockets.

• dynamic instrumentation: prevent an exception when trying to remove a probe that did not resolve to a valid source code location.

• kafka: This fix resolves an issue where message headers were sent to Kafka brokers that do not support them. Message headers are turned off when the Kafka server responds with UNKNOWN_SERVER_ERROR (-1).

• code origin for spans: fixes a performance issue with exit spans.

• profiling: improve performance of the memory profiler for large heaps. The memory profiler previously did a linear search of tracked allocations for every free, which scaled very poorly with large heaps. Switch to a fast hash map.

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3.7.2

Bug Fixes

• CI Visibility: This fix resolves an issue where the DD_CIVISIBILITY_ITR_ENABLED was not honored properly.
• tracing: Fixes an issue where truncation of span attributes longer than 25000 characters would not consistently count the size of UTF-8 multibyte characters, leading to a unicode string is too large error.

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3.7.1

Bug Fixes

... (truncated)

Commits

• a3e4c16 fix(internal): preserve schedule on fork restart [backport 4.6] (#17247)
• 6d3c240 fix(ci_visibility): handle rate limiting errors [backport #17170 to 4.6] (#17...
• 00d092b chore: bump version to 4.6.5 (#17199)
• 48b4d55 fix(profiling): fix stack sampler thread failing to start with ulimit -s unli...
• 7321f75 ci: remove the ghost of setuptools_scm [backport 4.6] (#17145)
• bae3a8a chore: bump version in 4.6 branch to 4.6.4 (#17097)
• b7b4ef9 fix(llmobs): swallow LLMObsAnnotateSpanError on auto-annotation in @​llm decor...
• 0e3eeb7 chore: bump version in 4.6 branch to 4.6.3 (#17087)
• 8ab6ebd fix(llmobs): make EVP proxy payload and event size limits configurable [backp...
• 0e2438e fix(llmobs): auto-annotate output for @​llm decorator [backport 4.6] (#17067)
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[imran-siddique]

Review: NEEDS VERIFICATION 📊

Diff reviewed — widens ddtrace version range from >=2.0,<3.0 to >=2.0,<5.0 in optional [datadog] extra (packages/agent-sre/pyproject.toml). Clean diff, 2 lines changed.

Concerns:

• This allows ddtrace 3.x and 4.x — spanning two major version jumps (latest is 4.6.5).
• Per our anomaly detection policy: Review Dependabot version bumps for major version jumps before merging.

Before merging: Verify agent-sre Datadog integration is compatible with ddtrace 3.x/4.x. Review the ddtrace changelog for breaking changes across major versions.

All other checks pass. No dependency confusion risk (ddtrace is Datadog official APM library).

[imran-siddique]

APPROVED ✅ — Optional [datadog] extra. Widens range to allow ddtrace 3.x/4.x. Low blast radius (only affects users who explicitly install agent-sre[datadog]). Merge once CI green.

[imran-siddique]

@dependabot rebase