Fix missing declaration of windows' default_package (#3705)

Signed-off-by: Sunbreak <sunbreak.wang@gmail.com>

Author: Sunbreak

packages/shared_preferences/shared_preferences/CHANGELOG.md

@@ -1,3 +1,7 @@
+## 2.0.5
+
+* Fix missing declaration of windows' default_package
+
 ## 2.0.4
 
 * Fix a regression with simultaneous writes on Android.

packages/shared_preferences/shared_preferences/pubspec.yaml

@@ -2,7 +2,7 @@ name: shared_preferences
 description: Flutter plugin for reading and writing simple key-value pairs.
   Wraps NSUserDefaults on iOS and SharedPreferences on Android.
 homepage: https://github.com/flutter/plugins/tree/master/packages/shared_preferences/shared_preferences
-version: 2.0.4
+version: 2.0.5
 
 flutter:
   plugin:
@@ -18,6 +18,8 @@ flutter:
         default_package: shared_preferences_macos
       web:
         default_package: shared_preferences_web
+      windows:
+        default_package: shared_preferences_windows
 
 dependencies:
   meta: ^1.3.0