langchain-core==1.2.5

Changes since langchain-core==1.2.4

release(core): 1.2.5 (#34456) fix(core): serialization patch (#34455) fix(core): RunnablePick method return types (#34208) fix(core): preserve Field(description=...) in @tool decorator (#34354) fix(core): populate default args from tool's args_schema (#34399) fix(core): use tool_calls instead of deprecated function_call in get_buffer_string (#34355) feat(core): add PEP 702 __deprecated__ attribute support to @deprecated (#34257) fix(core): ensure tool_call_count is never null (#34431) feat(core): automatically count and store meta for tool call count (#33756) feat(core): add 'approximate' alias in place of count_tokens_approximately (#33045) chore(core): fix some ruff preview rules (#34425)