added extras dependency group

Author: OKUA1

src/python/pyproject.toml

@@ -15,4 +15,5 @@ classifiers = [
 
 [project.optional-dependencies]
 core = ["numpy>=1.0.0,<3.0.0", "onnxruntime>=1.0.0,<2.0.0"]
+extras = ["pydantic>=2.0.0,<3.0.0"]
 test = ["jsonschema>=4.0.0,<5.0.0"]