Field validation doesn't handle PydanticUndefined

[drawnwren]

When trying to serialize a simple dataclass i.e.:

class A(AvroBaseModel):
    a: uuid.UUID = Field(uuid.UUID, description="a simple field")

Pydantic will set the default parameter to PydanticUndefined, but dataclasses-avroschema asserts,

  File "site-packages/dataclasses_avroschema/fields/fields.py", line 728, in validate_default
    assert isinstance(default, (str, uuid.UUID)), msg

I think this happens in all of the type render methods. Everything seems to work correctly when I leave Field off.