Error handler wrong behaviour

[Olegt0rr]

Context

Every handler type in aiogram receives own event type into first positional arguments:

• message handler receives Message
• callback_query handler receives CallbackQuery
• poll handler receives Poll

Expected Behavior

• error handler receives Exception

This behaviour also described in the docs:
https://docs.aiogram.dev/en/dev-3.x/dispatcher/router.html#errors

Current Behavior

• error handler receives Update

Steps to Reproduce

import logging

from aiogram import Bot, Dispatcher, types

TOKEN = "42:token"

logging.basicConfig(level=logging.INFO)
logger = logging.getLogger(__name__)

dp = Dispatcher()


@dp.message()
async def echo_handler(message: types.Message) -> None:
    raise Exception("Test exception")


@dp.errors()
async def error_handler(first) -> None:
    logger.warning("First argument type: %s", type(first).__name__)


if __name__ == "__main__":
    bot = Bot(TOKEN, parse_mode="HTML")
    dp.run_polling(bot)