Bump python-dotenv in /openai_sdk in the uv group across 1 directory

Bumps the uv group with 1 update in the /openai_sdk directory: [python-dotenv](https://github.com/theskumar/python-dotenv).


Updates `python-dotenv` from 1.0.1 to 1.2.2
- [Release notes](https://github.com/theskumar/python-dotenv/releases)
- [Changelog](https://github.com/theskumar/python-dotenv/blob/main/CHANGELOG.md)
- [Commits](theskumar/python-dotenv@v1.0.1...v1.2.2)

---
updated-dependencies:
- dependency-name: python-dotenv
  dependency-version: 1.2.2
  dependency-type: direct:production
  dependency-group: uv
...

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

Author: dependabot[bot]

openai_sdk/pyproject.toml

@@ -6,5 +6,5 @@ readme = "README.md"
 requires-python = ">=3.12"
 dependencies = [
     "openai>=1.52.0",
-    "python-dotenv>=1.0.1",
+    "python-dotenv>=1.2.2",
 ]