chore(deps): weekly dependency update

[github-actions]

Automated weekly dependency update via python scripts/update-matrix-latest.py && uv lock --upgrade.

⚠️ Provider SDK packages changed. A human needs to re-record cassettes locally before merging.

Summary by Sourcery

Update dependency matrix and lockfile to the latest compatible provider SDK and integration versions.

Enhancements:

• Refresh Braintrust provider matrix entries to new latest versions for OpenAI, Anthropic, Cohere, and other SDKs and integrations.
• Regenerate the Python uv.lock file to align with the updated dependency versions.

[sourcery-ai]

Reviewer's guide (collapsed on small PRs)

Reviewer's Guide

Updates the Braintrust integration matrix to point all latest entries at newer provider SDK versions and refreshes the uv.lock to match, requiring re-recording of any SDK-specific test cassettes.

File-Level Changes

Change	Details	Files
Bump latest matrix entries for all configured provider SDK integrations to newer versions.	Update OpenAI, Anthropic, Cohere, OpenAI Agents, LiteLLM, Claude Agent SDK, Agno, AgentScope, Strands Agents, Pydantic-AI, Google GenAI, DSPy, CrewAI, Google ADK, LangChain Core, LlamaIndex Core, MistralAI, and TemporalIO latest pins in the Braintrust matrix. Preserve existing historical version pins to maintain compatibility for older integration tests and clients.	py/pyproject.toml
Regenerate dependency lockfile to align with updated provider SDK versions.	Re-run uv lock --upgrade to refresh transitive dependency graph. Capture any new or updated transitive dependencies required by the bumped SDK versions.	py/uv.lock

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