Bump langgraph-checkpoint from 3.0.1 to 4.0.0 in /langchain/shopping-agent#138

dependabot[bot] wants to merge 1 commit intomainaws-samples/sample-agentic-frameworks-on-aws:mainfrom

dependabot/uv/langchain/shopping-agent/langgraph-checkpoint-4.0.0aws-samples/sample-agentic-frameworks-on-aws:dependabot/uv/langchain/shopping-agent/langgraph-checkpoint-4.0.0Copy head branch name to clipboard