A recent change to the Dart SDK updated `HttpClientResponse`
to implement `Stream<Uint8List>` rather than implementing
`Stream<List<int>>`.

This forwards-compatible chnage updates calls to
`Stream.transform(StreamTransformer)` to instead call the
functionally equivalent `StreamTransformer.bind(Stream)`
API, which puts the stream in a covariant position and
thus causes the SDK change to be non-breaking.

https://github.com/dart-lang/sdk/issues/36900