Changes since langchain-anthropic==0.2.3
integrations[patch]: bump core to 0.3.15 (#27805)
anthropic[patch]: allow multiple sys not at start (#27725)
core[patch]: add convert_to_openai_messages util (#27263)
multiple: rely on asyncio_mode auto in tests (#27200)
[Anthropic] Shallow Copy (#27105)
docs: fix anthropic max_tokens docstring (#27166)