[Bug] JSON validation with dataclass model does not works with list

[leotada]

Describe the bug
I tried to use the sanic-ext validation to validate a complex json body without pydantic, and occour error. Using the pydantic model works.

To Reproduce
Validate like this example of models, using built-in list keyword:

@dataclass
class User:
    id: int
    name: str
    friends: list[Friend]

@dataclass
class Friend:
    name: str

Expected behavior
Validate normally.

Environment (please complete the following information):

• OS: Endeavour OS Linux

Additional context
Like @ahopkins said, maybe this is a bug related to 'list' keyword that is builtin in more recent Python versions. Using the List type imported of typing module appears to work as expected.
https://discord.com/channels/812221182594121728/872787982741032971/898279553288523807