Bump openai from 1.56.0 to 1.99.6

Bumps [openai](https://github.com/openai/openai-python) from 1.56.0 to 1.99.6.
- [Release notes](https://github.com/openai/openai-python/releases)
- [Changelog](https://github.com/openai/openai-python/blob/main/CHANGELOG.md)
- [Commits](openai/openai-python@v1.56.0...v1.99.6)

---
updated-dependencies:
- dependency-name: openai
  dependency-version: 1.99.6
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

requirements.txt

@@ -1,4 +1,4 @@
-openai==1.56.0
+openai==1.99.6
 loguru==0.7.2
 pydantic==2.8.2
 pydantic-settings==2.4.0