fix(deps): bump pydantic from 2.12.5 to 2.13.0

Bumps [pydantic](https://github.com/pydantic/pydantic) from 2.12.5 to 2.13.0.
- [Release notes](https://github.com/pydantic/pydantic/releases)
- [Changelog](https://github.com/pydantic/pydantic/blob/main/HISTORY.md)
- [Commits](https://github.com/pydantic/pydantic/compare/v2.12.5...v2.13.0)

---
updated-dependencies:
- dependency-name: pydantic
  dependency-version: 2.13.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

requirements.txt

@@ -2,7 +2,7 @@ fastapi==0.128.8
 uvicorn==0.39.0
 python-dotenv==1.2.1
 httpx==0.28.1
-pydantic==2.12.5
+pydantic==2.13.0
 pydantic-settings==2.11.0
 pytest>=7.4.4
 pytest-asyncio>=0.25.2