fix(deps): update dependency anthropic to ~=0.51.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
anthropic	~=0.50.0 -> ~=0.51.0

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Release Notes

anthropics/anthropic-sdk-python (anthropic)

v0.51.0

Compare Source

Full Changelog: v0.50.0...v0.51.0

Features

• api: adds web search capabilities to the Claude API (bec0cf9)

Bug Fixes

• pydantic v1: more robust ModelField.annotation check (c50f406)
• sockets: handle non-portable socket flags (#​935) (205c8dd)

Chores

• broadly detect json family of content-type headers (66bbb3a)
• ci: only use depot for staging repos (c867a11)
• ci: run on more branches and use depot runners (95f5f17)
• internal: add back missing custom modifications for Web Search (f43ba69)
• internal: minor formatting changes (8afef08)
• use lazy imports for resources (704be81)

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