Fix CI issues

Author: brianegan

change_notifier_provider/test/mock_repository.dart

@@ -8,7 +8,7 @@ class MockRepository extends TodosRepository {
   int saveCount = 0;
 
   MockRepository([List<Todo> todos = const []])
-      : entities = todos.map((it) => it.toEntity()).toList();
+    : entities = todos.map((it) => it.toEntity()).toList();
 
   @override
   Future<List<TodoEntity>> loadTodos() async => entities;

mvi_flutter/lib/widgets/extra_actions_button.dart

@@ -6,7 +6,7 @@ class ExtraActionsButton extends StatelessWidget {
   final bool allComplete;
   final bool hasCompletedTodos;
 
-  ExtraActionsButton({
+  const ExtraActionsButton({
     super.key,
     required this.onSelected,
     this.allComplete = false,

mvi_flutter/lib/widgets/filter_button.dart

@@ -7,7 +7,7 @@ class FilterButton extends StatelessWidget {
   final VisibilityFilter activeFilter;
   final bool isActive;
 
-  FilterButton({
+  const FilterButton({
     super.key,
     required this.onSelected,
     required this.activeFilter,