Bump pydantic from 2.6.3 to 2.6.4

Bumps [pydantic](https://github.com/pydantic/pydantic) from 2.6.3 to 2.6.4.
- [Release notes](https://github.com/pydantic/pydantic/releases)
- [Changelog](https://github.com/pydantic/pydantic/blob/main/HISTORY.md)
- [Commits](pydantic/pydantic@v2.6.3...v2.6.4)

---
updated-dependencies:
- dependency-name: pydantic
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

requirements.txt

@@ -5,7 +5,7 @@ langchain==0.1.11
 ollama==0.1.7
 openai==1.13.3
 pre-commit==3.6.2
-pydantic==2.6.3
+pydantic==2.6.4
 PyYAML==6.0.1
 uvicorn==0.27.1
 requests~=2.31.0