chore(deps): Bump pydantic from 2.12.5 to 2.13.4

Bumps [pydantic](https://github.com/pydantic/pydantic) from 2.12.5 to 2.13.4.
- [Release notes](https://github.com/pydantic/pydantic/releases)
- [Changelog](https://github.com/pydantic/pydantic/blob/v2.13.4/HISTORY.md)
- [Commits](pydantic/pydantic@v2.12.5...v2.13.4)

---
updated-dependencies:
- dependency-name: pydantic
  dependency-version: 2.13.4
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

requirements.txt

@@ -4,7 +4,7 @@ fastapi==0.135.2
 uvicorn[standard]==0.42.0
 
 # Data validation and serialization
-pydantic==2.12.5
+pydantic==2.13.4
 pydantic-settings==2.13.1
 
 # HTTP client for external requests