langchain-anthropic==0.3.1

Changes since langchain-anthropic==0.3.0

anthropic: less pydantic for client (#28823)
anthropic: sdk bump (#28820)
partners/anthropic: release 0.3.1 (#28801)
anthropic[patch]: increase timeouts for integration tests (#28767)
anthropic: timeout in tests (10s) (#28488)
multiple: push deprecation removals to 1.0 (#28236)
standard-tests: rename langchain_standard_tests to langchain_tests, release 0.3.2 (#28203)
multiple: langchain-standard-tests -> langchain-tests (#28139)
anthropic[patch]: add examples to API ref (#28065)