Upgrade packages

pubspec.lock

@@ -7,14 +7,14 @@ packages:
       name: _fe_analyzer_shared
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "28.0.0"
+    version: "29.0.0"
   analyzer:
     dependency: transitive
     description:
       name: analyzer
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.5.0"
+    version: "2.6.0"
   args:
     dependency: transitive
     description:
@@ -140,7 +140,7 @@ packages:
       name: cli_util
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.3.4"
+    version: "0.3.5"
   clock:
     dependency: transitive
     description:
@@ -379,14 +379,14 @@ packages:
       name: json_annotation
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "4.1.0"
+    version: "4.3.0"
   json_serializable:
     dependency: "direct dev"
     description:
       name: json_serializable
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "5.0.2"
+    version: "6.0.0"
   lints:
     dependency: transitive
     description:
@@ -701,7 +701,7 @@ packages:
     source: hosted
     version: "1.0.1"
   web_socket_channel:
-    dependency: transitive
+    dependency: "direct main"
     description:
       name: web_socket_channel
       url: "https://pub.dartlang.org"

pubspec.yaml

@@ -36,6 +36,7 @@ dependencies:
   # Use with the CupertinoIcons class for iOS style icons.
   cupertino_icons: ^1.0.2
   http: ^0.13.3
+  web_socket_channel: ^2.1.0
   flutter_secure_storage: ^5.0.0-beta.5
   flutter_web_auth: ^0.3.1
   intl: ^0.17.0
@@ -56,7 +57,7 @@ dev_dependencies:
   # rules and activating additional ones.
   flutter_lints: ^1.0.0
   build_runner: ^2.1.1
-  json_serializable: ^5.0.1
+  json_serializable: ^6.0.0
   mobx_codegen: ^2.0.0
 
 # For information on the generic Dart part of this file, see the