[path_provider] Add missing pluginClass: none to path_provider_windows (#3052)

Stable channel still needs a 'pluginClass: none' to avoid
"Invalid plugin specification" errors when parsing a Dart-only desktop
plugin like this one.

Fixes https://github.com/flutter/flutter/issues/66158
diff --git a/packages/path_provider/path_provider_windows/CHANGELOG.md b/packages/path_provider/path_provider_windows/CHANGELOG.md
index 982602c..0b73286 100644
--- a/packages/path_provider/path_provider_windows/CHANGELOG.md
+++ b/packages/path_provider/path_provider_windows/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 0.0.3
+
+* Add missing `pluginClass: none` for compatibilty with stable channel.
+
 ## 0.0.2
 
 * README update for endorsement.
diff --git a/packages/path_provider/path_provider_windows/pubspec.yaml b/packages/path_provider/path_provider_windows/pubspec.yaml
index 54d5a51..998f4e2 100644
--- a/packages/path_provider/path_provider_windows/pubspec.yaml
+++ b/packages/path_provider/path_provider_windows/pubspec.yaml
@@ -1,14 +1,14 @@
 name: path_provider_windows
 description: Windows implementation of the path_provider plugin
 homepage: https://github.com/flutter/plugins/tree/master/packages/path_provider/path_provider_windows
-version: 0.0.2
+version: 0.0.3
 
 flutter:
   plugin:
     platforms:
       windows:
         dartPluginClass: PathProviderWindows
-
+        pluginClass: none
 
 dependencies:
   path_provider_platform_interface: ^1.0.3