chore(core): Fix BufferStream not exported (#5730)

Signed-off-by: Xuanwo <github@xuanwo.io>

Author: Xuanwo

core/src/types/read/mod.rs

@@ -20,7 +20,7 @@ mod reader;
 pub use reader::Reader;
 
 mod buffer_stream;
-pub(crate) use buffer_stream::BufferStream;
+pub use buffer_stream::BufferStream;
 
 mod futures_async_reader;
 pub use futures_async_reader::FuturesAsyncReader;