Bump openai from 1.3.8 to 1.5.0

Bumps [openai](https://github.com/openai/openai-python) from 1.3.8 to 1.5.0.
- [Release notes](https://github.com/openai/openai-python/releases)
- [Changelog](https://github.com/openai/openai-python/blob/main/CHANGELOG.md)
- [Commits](https://github.com/openai/openai-python/compare/v1.3.8...v1.5.0)

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

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

requirements.txt

@@ -3,7 +3,7 @@ faiss-cpu==1.7.4
 huggingface-hub==0.19.4
 langchain==0.0.350
 langsmith==0.0.71
-openai==1.3.8
+openai==1.5.0
 pydantic==2.5.2
 PyYAML==6.0.1
 sentence-transformers==2.2.2