Bump python-dotenv from 1.2.2 to 1.2.3

Bumps [python-dotenv](https://github.com/theskumar/python-dotenv) from 1.2.2 to 1.2.3.
- [Release notes](https://github.com/theskumar/python-dotenv/releases)
- [Changelog](https://github.com/theskumar/python-dotenv/blob/main/CHANGELOG.md)
- [Commits](theskumar/python-dotenv@v1.2.2...v1.2.3)

---
updated-dependencies:
- dependency-name: python-dotenv
  dependency-version: 1.2.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

requirements.txt

@@ -4,5 +4,5 @@ httpx==0.28.1
 pydantic==2.13.4
 pydantic-settings==2.15.0
 pytest==9.1.1
-python-dotenv==1.2.2
+python-dotenv==1.2.3
 uvicorn==0.52.1