langchain langchain-anthropic==1.7.7

Changes since langchain-anthropic==1.7.6 release(anthropic): 1.7.7 (#41538) fix(anthropic): trace resolved reasoning effort (#41536) chore(infra): relax third-party dependency upper bounds (#41407) chore(deps): bump certifi from 2025.11.12 to 2026.10.19 in /libs/partners/anthropic (#41391) fix: fix dependencies in some partner packages (#41266)