fix(deps): update dependency langchain to v1

Author: renovate[bot]

pyproject.toml

@@ -38,7 +38,7 @@ drf-jwt = "^1.19.2"
 drf-spectacular = "^0.28.0"
 gunicorn = "^23.0.0"
 ipython = "^9.0.0"
-langchain = "^0.3.13"
+langchain = "^1.0.0"
 langchain-community = "^0.3.16"
 langchain-core = "^0.3.31"
 langchain-litellm = "^0.3.0"