chore(deps): bump langchain-openai from 0.3.24 to 0.3.27

---
updated-dependencies:
- dependency-name: langchain-openai
  dependency-version: 0.3.27
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

requirements/base.txt

@@ -4,7 +4,7 @@ langchain==0.3.25
 langchain-community==0.3.21
 langchain-core==0.3.65
 langchain-experimental==0.3.4
-langchain-openai==0.3.24
+langchain-openai==0.3.27
 langchain-pinecone==0.2.8
 langchain-tests==0.3.17
 langchain-text-splitters==0.3.8