`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.

首先，将 typeshed 中对 asyncio.Protocol.data_received 的声明与 Lib/asyncio/proactor_events.py 中所示的运行时路径进行比较，尤其关注 _ProactorReadPipeTransport 和对 data_received 的调用。在决定修正是否应归入 typeshed 之前，先检查相关的 CPython issue，然后更新注解以表示 bytearray，并验证相关的 stub 检查能够通过。