langchain==1.2.18

Changes since langchain==1.2.17

release(langchain): 1.2.18 (#37250) revert: feat(langchain): ls_agent_type tag on create_agent calls (#37249) chore(langchain-classic): deprecate hub, limit loads/dumps (#37234) refactor(langchain-classic): retarget deprecations to create_agent, other chores (#37164) chore(langchain,langchain-classic): uncomment optional deps (#37163) release(fireworks): 1.2.1 (#37113)