PEP-681 - Inheriting class doesn't recognize kw_only=True from parent class

Bug Report

A class inheriting a class with kw_only=True and using a dataclass_transform doesn't recognize kw_only being set, even though in runtime it does not yield an error. Originally found in sqlalchemy's usage (https://github.com/sqlalchemy/sqlalchemy/issues/11485)

To Reproduce

from typing import Optional, Any
import typing_extensions


def field(default: Any=None, init: bool=True, repr: bool=True) -> Any:
    pass

@typing_extensions.dataclass_transform(
    field_specifiers=(
        field,
    )
)
class ModelMeta(type):
    pass

class ModelBase(metaclass=ModelMeta):
    def __init_subclass__(cls, kw_only: bool=False) -> None:
        pass

class Base(ModelBase, kw_only=True):
    pass

class Vehicle(Base):
    b: Optional[str] = field(default=None)
    c: int

Expected Behavior

No error.

Actual Behavior

error: Attributes without a default cannot follow attributes with one  [misc]
Found 1 error in 1 file (checked 1 source file)

Your Environment

• Mypy version used: 1.10
• Mypy command-line flags:
• Mypy configuration options from mypy.ini (and other config files):
• Python version used: 3.12

Inizia con il riproduttore minimo in Python presente nell'issue e segui la gestione da parte di mypy di dataclass_transform di PEP 681 per le impostazioni kw_only ereditate. Confronta l'errore di ordinamento segnalato con il comportamento previsto, quindi aggiungi un test di regressione per questo riproduttore ed esegui la suite di test pertinente per confermare che non venga segnalato alcun errore.