[example app] update all Dart dependencies

Author: bartekpacia

example/pubspec.yaml

@@ -4,22 +4,22 @@ version: 1.0.0+1
 publish_to: none
 
 environment:
-  sdk: ">=3.3.0 <4.0.0"
-  flutter: ">=3.19.0"
+  sdk: ">=3.6.0 <4.0.0"
+  flutter: ">=3.27.0"
 
 dependencies:
-  device_info_plus: ^10.1.0
+  device_info_plus: ^11.2.1
   flutter:
     sdk: flutter
   flutter_downloader:
     path: ../
-  path_provider: ^2.1.3
+  path_provider: ^2.1.5
   permission_handler: ^11.3.1
 
 dev_dependencies:
   flutter_test:
     sdk: flutter
-  leancode_lint: ^12.1.0
+  leancode_lint: ^15.0.0
 
 flutter:
   uses-material-design: true