Merge remote-tracking branch 'origin/develop' into v7.0.0

# Conflicts:
#	packages/stream_chat/CHANGELOG.md
#	packages/stream_chat/lib/version.dart
#	packages/stream_chat/pubspec.yaml
#	packages/stream_chat_flutter/CHANGELOG.md
#	packages/stream_chat_flutter/lib/src/channel/channel_preview.dart
#	packages/stream_chat_flutter/lib/src/message_widget/message_widget.dart
#	packages/stream_chat_flutter/lib/src/user/user_item.dart
#	packages/stream_chat_flutter/pubspec.yaml
#	packages/stream_chat_flutter_core/CHANGELOG.md
#	packages/stream_chat_flutter_core/pubspec.yaml
#	packages/stream_chat_localizations/CHANGELOG.md
#	packages/stream_chat_localizations/pubspec.yaml
#	packages/stream_chat_persistence/CHANGELOG.md
#	packages/stream_chat_persistence/pubspec.yaml

packages/stream_chat/test/src/client/client_test.dart

@@ -975,7 +975,7 @@ void main() {
         // skipping initial seed event -> {} users
         client.state.usersStream.skip(1),
         emitsInOrder([
-          {for (var user in users) user.id: user},
+          {for (final user in users) user.id: user},
         ]),
       );
 

packages/stream_chat/test/src/core/http/interceptor/additional_headers_interceptor_test.dart

@@ -1,3 +1,5 @@
+// ignore_for_file: invalid_use_of_protected_member
+
 import 'package:dio/dio.dart';
 import 'package:stream_chat/src/core/http/interceptor/additional_headers_interceptor.dart';
 import 'package:stream_chat/stream_chat.dart';

packages/stream_chat/test/src/core/http/interceptor/auth_interceptor_test.dart

@@ -1,3 +1,5 @@
+// ignore_for_file: invalid_use_of_protected_member
+
 import 'package:dio/dio.dart';
 import 'package:mocktail/mocktail.dart';
 import 'package:stream_chat/src/core/http/interceptor/auth_interceptor.dart';

packages/stream_chat/test/src/core/http/interceptor/connection_id_interceptor_test.dart

@@ -1,3 +1,5 @@
+// ignore_for_file: invalid_use_of_protected_member
+
 import 'package:dio/dio.dart';
 import 'package:mocktail/mocktail.dart';
 import 'package:stream_chat/src/core/http/connection_id_manager.dart';