fix dart bug

fixes `The argument type 'Utf8Decoder' can't be assigned to the parameter type 'StreamTransformer<Uint8List, dynamic>'.` on `flutter run`

dart/packages/lbry/lib/src/load_generator.dart

@@ -21,7 +21,7 @@ class LoadRequest {
         completer.future.whenComplete(() => timer.stop());
         try {
             Socket.connect(this.host, this.port).then((socket) {
-                socket.transform(utf8.decoder).listen((r) {
+                utf8.decoder.bind(socket).listen((r) {
                     if (r.contains('"jsonrpc": "2.0", "result": ')) {
                         socket.close();
                         completer.complete();

dart/packages/ver/pubspec.lock

@@ -136,7 +136,7 @@ packages:
       name: protobuf
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.13.14"
+    version: "0.13.15"
   quiver:
     dependency: transitive
     description: