bump window_manager and file_picker dart package versions

Author: kbhnd

packages/flet/pubspec.yaml

@@ -26,7 +26,7 @@ dependencies:
   provider: ^6.1.2
   web_socket_channel: ^3.0.2
   msgpack_dart: ^1.0.1
-  window_manager: ^0.5.0
+  window_manager: ^0.5.1
   window_to_front: ^0.0.3
   collection: ^1.19.0
   flutter_svg: 2.1.0
@@ -40,10 +40,10 @@ dependencies:
   markdown: 7.3.0
   sensors_plus: ^6.1.1
   web: ^1.1.1
-  file_picker: ^10.1.9
+  file_picker: ^10.3.3
   path_provider: ^2.1.5
   screenshot: ^3.0.0
-  
+
 dev_dependencies:
   flutter_test:
     sdk: flutter