chore(deps): bump langchain-openai from 0.1.9 to 0.1.13

Bumps [langchain-openai](https://github.com/langchain-ai/langchain) from 0.1.9 to 0.1.13.
- [Release notes](https://github.com/langchain-ai/langchain/releases)
- [Commits](langchain-ai/langchain@langchain-openai==0.1.9...langchain-openai==0.1.13)

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

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

requirements.txt

@@ -22,7 +22,7 @@ codespell==2.3.0
 python-decouple==3.8
 langchain==0.2.5
 langchainhub==0.1.20
-langchain-openai==0.1.9
+langchain-openai==0.1.13
 langchain-pinecone==0.1.1
 langchain-experimental
 openai==1.35.7