[shared_preferences] Publish fully federated version (#4526)

Restores the app-facing package to publishable state, pointing at the
newly-published federated Android and iOS implementation packages.

Part of Part of flutter/flutter#68498
diff --git a/packages/shared_preferences/shared_preferences/CHANGELOG.md b/packages/shared_preferences/shared_preferences/CHANGELOG.md
index f0a3e39..818266f 100644
--- a/packages/shared_preferences/shared_preferences/CHANGELOG.md
+++ b/packages/shared_preferences/shared_preferences/CHANGELOG.md
@@ -1,4 +1,4 @@
-## NEXT
+## 2.0.9
 
 * Fixes newly enabled analyzer options.
 * Updates example app Android compileSdkVersion to 31.
diff --git a/packages/shared_preferences/shared_preferences/pubspec.yaml b/packages/shared_preferences/shared_preferences/pubspec.yaml
index 8fe9093..732a62a 100644
--- a/packages/shared_preferences/shared_preferences/pubspec.yaml
+++ b/packages/shared_preferences/shared_preferences/pubspec.yaml
@@ -3,10 +3,7 @@
   Wraps NSUserDefaults on iOS and SharedPreferences on Android.
 repository: https://github.com/flutter/plugins/tree/master/packages/shared_preferences/shared_preferences
 issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3A%22p%3A+shared_preferences%22
-version: 2.0.8
-# Temporarily disable publishing to allow moving Android and iOS
-# implementations.
-publish_to: none
+version: 2.0.9
 
 environment:
   sdk: ">=2.14.0 <3.0.0"
@@ -32,11 +29,8 @@
   flutter:
     sdk: flutter
   meta: ^1.3.0
-    # Temporary path dependencies to allow moving Android and iOS implementations.
-  shared_preferences_android:
-    path: ../shared_preferences_android
-  shared_preferences_ios:
-    path: ../shared_preferences_ios
+  shared_preferences_android: ^2.0.8
+  shared_preferences_ios: ^2.0.8
   shared_preferences_linux: ^2.0.0
   shared_preferences_macos: ^2.0.0
   shared_preferences_platform_interface: ^2.0.0