Merge pull request #5 from CopilotKit/max/bump-langstar-packages

bump langgraph and related packages

Author: maxkorp

agent/requirements.txt

@@ -1,9 +1,9 @@
-langchain==0.3.26
-langgraph==0.4.10
-langsmith==0.4.4
+langchain==0.3.27
+langgraph==0.6.6
+langsmith==0.4.23
 openai>=1.68.2,<2.0.0
 fastapi>=0.115.5,<1.0.0
 uvicorn>=0.29.0,<1.0.0
-python-dotenv>=1.0.0,<2.0.0 
+python-dotenv>=1.0.0,<2.0.0
 langgraph-cli[inmem]==0.3.3
 langchain-openai>=0.0.1