Updated pubspec.yaml files to remove author and add flutter version constraints

Author: amrfarid140

firebase_auth_oauth/pubspec.yaml

@@ -1,11 +1,11 @@
 name: firebase_auth_oauth
 description: A Flutter plugin that makes it easy to perform OAuth sign in flows using FirebaseAuth. It also includes support for Sign in by Apple for Firebase.
 version: 0.2.4
-author: Amr Yousef <[email protected]>
 homepage: https://github.com/amrfarid140/firebase_auth_oauth/tree/master/firebase_auth_oauth
 
 environment:
   sdk: ">=2.2.2 <3.0.0"
+  flutter: ">=1.10.0 <2.0.0"
 
 dependencies:
   flutter:

firebase_auth_oauth_platform_interface/pubspec.yaml

@@ -2,7 +2,6 @@ name: firebase_auth_oauth_platform_interface
 description: Platform interface plugin for firebase_auth_oauth. This includes
   API definition which will be implemented for android, ios and web.
 version: 0.2.2
-author: Amr Yousef <[email protected]>
 homepage: https://github.com/amrfarid140/firebase_auth_oauth/tree/master/firebase_auth_oauth_platform_interface
 
 environment:

firebase_auth_oauth_web/pubspec.yaml

@@ -1,11 +1,11 @@
 name: firebase_auth_oauth_web
 description: Web implementation for `firebase_auth_oauth`.  Don't use directly. Instead import `firebase_auth_oauth` plugin.
 version: 0.2.2
-author: Amr Yousef <[email protected]>
 homepage: https://github.com/amrfarid140/firebase_auth_oauth/tree/master/firebase_auth_oauth_web
 
 environment:
   sdk: ">=2.2.2 <3.0.0"
+  flutter: ">=1.10.0 <2.0.0"
 
 dependencies:
   flutter: