Don't use pedantic in peer

lib/src/peer.dart

@@ -4,7 +4,6 @@
 
 import 'dart:async';
 
-import 'package:pedantic/pedantic.dart';
 import 'package:stream_channel/stream_channel.dart';
 
 import 'channel_manager.dart';
@@ -119,10 +118,10 @@ class Peer implements Client, Server {
   // Shared methods.
 
   @override
-  Future listen() async {
-    unawaited(_client.listen());
-    unawaited(_server.listen());
-    await _manager.listen((message) {
+  Future listen() {
+    _client.listen();
+    _server.listen();
+    return _manager.listen((message) {
       if (message is Map) {
         if (message.containsKey('result') || message.containsKey('error')) {
           _clientIncomingForwarder.add(message);
@@ -143,9 +142,7 @@ class Peer implements Client, Server {
         // server since it knows how to send error responses.
         _serverIncomingForwarder.add(message);
       }
-    });
-
-    return close();
+    }).whenComplete(close);
   }
 
   @override

pubspec.yaml

@@ -8,10 +8,10 @@ environment:
   sdk: ">=2.2.0 <3.0.0"
 
 dependencies:
-  pedantic: ^1.8.0
   stack_trace: ^1.0.0
   stream_channel: ">=1.1.0 <3.0.0"
 
 dev_dependencies:
+  pedantic: ^1.8.0
   test: ^1.0.0
   web_socket_channel: ^1.1.0