Introducing deploy cli for LangChain

LangChain has introduced a new set of commands in the langgraph-cli package that simplifies deploying and managing agents from the command line.

Details

The new deploy cli feature in the langgraph-cli package allows LangChain users to easily deploy and manage their agents directly from the command line, without having to go through a web interface or other manual processes. This helps streamline the deployment workflow and makes it more accessible for developers working with LangChain. The initial 'langgraph deploy' command enables deploying agents to the LangSmith Deployment platform, with plans to expand support for other deployment options in the future.