chore(deps): bump ddtrace from 3.15.0 to 3.16.0

[dependabot]

Bumps ddtrace from 3.15.0 to 3.16.0.

Release notes

Sourced from ddtrace's releases.

3.16.0

Estimated end-of-life date, accurate to within three months: 08-2026 See the support level definitions for more information.

Upgrade Notes

• This change updates library injection logic to work under Python 3.14.
• This change adds support and tests for Python 3.14 to much of the library's functionality. The following products and integrations still do not work with Python 3.14:
  • Profiling
  • IAST
  • datastreams
  • ci_visibility
  • pytest
  • django - django version 6.1, which will be compatible with Python 3.14, is not yet released
  • django_hosts - django version 6.1, which will be compatible with Python 3.14, is not yet released
  • djangorestframework - django version 6.1, which will be compatible with Python 3.14, is not yet released
  • django:celery - django version 6.1, which will be compatible with Python 3.14, is not yet released
  • dramatiq - dramatiq doesn't yet have a release supporting 3.14
  • grpc_aio - some tests in the suite don't work with pytest-asyncio >= 1.0
  • rq - rq doesn't work with python 3.14
  • sqlite3 - pysqlite3-binary doesn't yet support python 3.14
  • opentelemetry - opentelemetry-exporter-otlp doesn't yet work with Python 3.14
  • openai - tiktoken doesn't yet work with Python 3.14
  • ai_guard_langchain - tiktoken doesn't yet work with Python 3.14
  • openai_agents
  • langchain
  • langgraph - tiktoken doesn't yet work with Python 3.14
  • litellm - tiktoken doesn't yet work with Python 3.14
  • google_generativeai - protobuf doesn't yet work with Python 3.14
  • vertexai
  • crewai - tiktoken doesn't yet work with Python 3.14
  • ray - ray doesn't yet work with Python 3.14
  • kafka - confluent-kafka doesn't yet work with Python 3.14
  • aws_lambda - datadog-lambda doesn't yet work with Python 3.14
  • llmobs - ragas doesn't yet work with Python 3.14
  • appsec_integrations_fastapi

Deprecation Notes

• vertica: The vertica integration is deprecated and will be removed in a future version, around the same time that ddtrace drops support for Python 3.9.

New Features

• opentelemetry: Adds default configurations for the OpenTelemetry Metrics API implementation to improve the Datadog user experience. This includes the following configurations:
  • OTEL_EXPORTER_OTLP_METRICS_ENDPOINT is set to the default Datadog Agent endpoint, or localhost if not found
  • OTEL_EXPORTER_OTLP_METRICS_TEMPORALITY_PREFERENCE is set to delta
  • OTEL_METRIC_EXPORT_INTERVAL is set to 10000
  • OTEL_METRIC_EXPORT_TIMEOUT is set to 7500
• LLM Observability: MCP integration also traces ClientSession contexts, ClientSession.initialize, and ClientSession.list_tools.
• ray: This introduces a Ray core integration that traces Ray jobs, remote tasks, and actor method calls. Supported for Ray >= 2.46.0.

... (truncated)

Commits

• 35c3c11 chore(mlobs): set a special flag to distinguish AI Obs spans from DJM (#14789)
• 77444ab perf(tracer): avoid unncessary context creation (#14773)
• d033f37 ci(iast): skip test_gevent_sensitive_greenlet test for python 3.8 (#14784)
• d99dfd9 fix(er): use correct Path type in exception replay (and code origin) (#14781)
• 57b137d ci: do not attempt old grpcio version against python 3.14 (#14780)
• e9bc459 feat(profiling): add memory allocator testing variants (#14659)
• a74aedd chore: change asgi request span finish (#14774)
• 8b48e5b chore(serverless): test to ensure that all imports in datadog-lambda-python s...
• 59f8667 chore: update langgraph latest version to 0.6.8 (#14775)
• 620dc72 feat(profiling): replace type hints with modern type annotations (#14679)
• Additional commits viewable in compare view

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