Fix typo

Author: JSUYA

packages/tizen_window_manager/pubspec.yaml

@@ -2,7 +2,7 @@ name: tizen_window_manager
 description: Tizen window APIs.
 homepage: https://github.com/flutter-tizen/plugins
 repository: https://github.com/flutter-tizen/plugins/tree/master/packages/tizen_window_manager
-version: 0.2.0
+version: 0.1.0
 
 environment:
   sdk: ">=3.1.0 <4.0.0"