chore(deps): bump openai in the llm-sdks group across 1 directory

Bumps the llm-sdks group with 1 update in the / directory: [openai](https://github.com/openai/openai-python).


Updates `openai` from 3.0.0 to 3.1.0
- [Release notes](https://github.com/openai/openai-python/releases)
- [Changelog](https://github.com/openai/openai-python/blob/main/CHANGELOG.md)
- [Commits](openai/openai-python@v3.0.0...v3.1.0)

---
updated-dependencies:
- dependency-name: openai
  dependency-version: 3.1.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: llm-sdks
...

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

Author: dependabot[bot]

pyproject.toml

@@ -8,7 +8,7 @@ dependencies = [
     "anthropic==0.122.0",
     "google-genai==2.18.1",
     "httpx==0.28.1",
-    "openai==3.0.0",
+    "openai==3.1.0",
     "pydantic==2.13.4",
     "python-dotenv==1.2.2",
     "rich==15.0.0",