chore(deps-dev): bump langgraph from 1.0.3 to 1.0.10rc1 (#121)

Bumps [langgraph](https://github.com/langchain-ai/langgraph) from 1.0.3 to 1.0.10rc1.
- [Release notes](https://github.com/langchain-ai/langgraph/releases)
- [Commits](langchain-ai/langgraph@1.0.3...1.0.10rc1)

---
updated-dependencies:
- dependency-name: langgraph
  dependency-version: 1.0.10rc1
  dependency-type: direct:development
...

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Author: dependabot[bot]

pyproject.toml

@@ -44,7 +44,7 @@ agent-strands = [
 
 # LangGraph agent dependencies (for local development)
 agent-langgraph = [
-    "langgraph==1.0.3",
+    "langgraph==1.0.10rc1",
     "langchain-aws==1.0.0",
     "langchain-mcp-adapters==0.1.13",
     "langgraph-checkpoint-aws==1.0.1",