chore(deps): bump langchain-openai from 0.0.8 to 0.1.6

Bumps [langchain-openai](https://github.com/langchain-ai/langchain) from 0.0.8 to 0.1.6.
- [Release notes](https://github.com/langchain-ai/langchain/releases)
- [Commits](https://github.com/langchain-ai/langchain/commits/langchain-openai==0.1.6)

---
updated-dependencies:
- dependency-name: langchain-openai
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

pyproject.toml

@@ -12,7 +12,7 @@ urllib3 = ">=1.26.16,<3.0.0"
 fastapi = "^0.110.0"
 openai = "^1.14.0"
 langchain = "^0.1.16"
-langchain-openai = "^0.0.8"
+langchain-openai = ">=0.0.8,<0.1.7"
 uvicorn = "^0.28.0"
 pydantic = ">=1.10.13,<2"
 python-dotenv = "^1.0.1"