chore(deps): update dependency langgraph to v1

Author: renovate-bot

pyproject.toml

@@ -50,7 +50,7 @@ test = [
     "pytest==8.4.2",
     "pytest-cov==7.0.0",
     "langchain-tests==0.3.22",
-    "langgraph==0.6.10"
+    "langgraph==1.0.2"
 ]
 
 [build-system]

requirements.txt

@@ -2,5 +2,5 @@ cloud-sql-python-connector[asyncpg]==1.18.4
 numpy==2.3.3; python_version >= "3.11"
 numpy==2.2.6; python_version == "3.10"
 numpy==2.0.2; python_version <= "3.9"
-langgraph==0.6.10
+langgraph==1.0.2
 langchain-postgres==0.0.15