Bump langchain-openai from 0.0.3 to 0.0.5

Bumps [langchain-openai](https://github.com/langchain-ai/langchain) from 0.0.3 to 0.0.5.
- [Release notes](https://github.com/langchain-ai/langchain/releases)
- [Commits](https://github.com/langchain-ai/langchain/commits/v0.0.5)

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

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