`asyncio.Protocol.data_received` should also accept `bytearray` alongside `bytes`

Asyncio's _ProactorReadPipeTransport can also feed bytearray objects in the data_received callback from asyncio.Protocol.

• First, self._data is a bytearray here: https://github.com/python/cpython/blob/f8a736b8e14ab839e1193cb1d3955b61c316d048/Lib/asyncio/proactor_events.py#L191
• This gets passed to `self._data_received here: https://github.com/python/cpython/blob/f8a736b8e14ab839e1193cb1d3955b61c316d048/Lib/asyncio/proactor_events.py#L230
• The passed into Protocol.data_received here: https://github.com/python/cpython/blob/f8a736b8e14ab839e1193cb1d3955b61c316d048/Lib/asyncio/proactor_events.py#L274

Shall I make a PR with a fix for this?

Related cpython issue: https://github.com/python/cpython/issues/123496 - I'm not sure whether or not it should be fixed in the stdlib instead.

まず、asyncio.Protocol.data_received の typeshed 宣言を、Lib/asyncio/proactor_events.py に示されているランタイムパスと比較します。特に _ProactorReadPipeTransport と data_received の呼び出しを確認してください。修正を typeshed に入れるべきか判断する前に、関連する CPython issue を確認し、その後、bytearray が表現されるようにアノテーションを更新して、関連する stub チェックが通ることを確認してください。