Bump langgraph from 0.6.10 to 1.0.0

Bumps [langgraph](https://github.com/langchain-ai/langgraph) from 0.6.10 to 1.0.0.
- [Release notes](https://github.com/langchain-ai/langgraph/releases)
- [Commits](langchain-ai/langgraph@0.6.10...1.0.0)

---
updated-dependencies:
- dependency-name: langgraph
  dependency-version: 1.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

requirements.txt

@@ -9,7 +9,7 @@ langchain-community==0.4
 langchain-google-genai==3.0.0
 langchain-mistralai==1.0.0
 langchain-openai==1.0.0
-langgraph==1.0.0
+langgraph==1.0.1
 libmozdata==0.2.12
 llama-cpp-python==0.2.90
 lmdb==1.7.5