fix(deps): update dependency langchain to v1

Author: renovate[bot]

pyproject.toml

@@ -57,7 +57,7 @@ html5lib = "^1.1"
 ipython = "^9.0.0"
 isodate = "^0.7.2"
 jedi = "^0.19.0"
-langchain = "^0.3.11"
+langchain = "^1.0.0"
 langchain-experimental = "^0.3.4"
 langchain-openai = "^0.3.2"
 litellm = "1.79.3"