Respect custom fields style

[Olegt0rr]

Custom field names should be repected

Example:

class HelpIssue(FullIssue, kw_only=True):
    user_id: int | None = field(default=None, name="userId")
    user_username: str | None = field(default=None, name="user_username")
    bot_username: str | None = field(default=None, name="bot_username")
    user_name: str | None = field(default=None, name="user_name")