chore(deps): bump langchain-openai from 0.3.28 to 1.0.1

Bumps [langchain-openai](https://github.com/langchain-ai/langchain) from 0.3.28 to 1.0.1.
- [Release notes](https://github.com/langchain-ai/langchain/releases)
- [Commits](langchain-ai/langchain@langchain-openai==0.3.28...langchain-openai==1.0.1)

---
updated-dependencies:
- dependency-name: langchain-openai
  dependency-version: 1.0.1
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

requirements/base.txt

@@ -4,7 +4,7 @@ langchain==0.3.27
 langchain-community==0.3.27
 langchain-core==0.3.72
 langchain-experimental==0.3.4
-langchain-openai==0.3.28
+langchain-openai==1.0.1
 langchain-pinecone==0.2.12
 langchain-tests==0.3.20
 langchain-text-splitters==0.3.9