Bump pydantic-core from 2.20.1 to 2.21.0

Bumps [pydantic-core](https://github.com/pydantic/pydantic-core) from 2.20.1 to 2.21.0.
- [Release notes](https://github.com/pydantic/pydantic-core/releases)
- [Commits](pydantic/pydantic-core@v2.20.1...v2.21.0)

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

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

requirements.txt

@@ -16,7 +16,7 @@ onnxruntime==1.18.1
 packaging==24.1; python_version >= '3.8'
 protobuf==5.27.3; python_version >= '3.8'
 pydantic==2.8.2; python_version >= '3.8'
-pydantic-core==2.20.1; python_version >= '3.8'
+pydantic-core==2.21.0; python_version >= '3.8'
 pyreadline3==3.4.1; python_version >= '3.8' and sys_platform == 'win32'
 python-dotenv==1.0.1; python_version >= '3.8'
 sqlparse==0.5.1; python_version >= '3.8'