langchain-tests==0.3.11

Changes since langchain-tests==0.3.10

tests: release 0.3.11 (#29648)
infra: add UV_FROZEN to makefiles (#29642)
infra: migrate to uv (#29566)
standard-tests[patch]: use has_structured_output property to engage structured output tests (#29635)
standard-tests: Fix ToolsIntegrationTests to correctly handle "content_and_artifact" tools (#29391)