Update to latest versions of hyper and http-body (#1882)

Co-authored-by: Michael Scofield <[email protected]>
Co-authored-by: Jonas Platte <[email protected]>

examples/stream-to-file/src/main.rs

@@ -53,7 +53,7 @@ async fn save_request_body(
     Path(file_name): Path<String>,
     request: Request,
 ) -> Result<(), (StatusCode, String)> {
-    stream_to_file(&file_name, request.into_body()).await
+    stream_to_file(&file_name, request.into_body().into_data_stream()).await
 }
 
 // Handler that returns HTML for a multipart form.