chore: fix android release example

Author: fadi-george

example/pubspec.yaml

@@ -8,6 +8,8 @@ dependencies:
   # The following adds the Cupertino Icons font to your application.
   # Use with the CupertinoIcons class for iOS style icons.
   cupertino_icons: ^1.0.0
+  onesignal_flutter:
+    path: ../
 
 environment:
   sdk: ">=2.12.0 <3.0.0"
@@ -17,9 +19,6 @@ dev_dependencies:
     sdk: flutter
   flutter_lints: ^2.0.0
 
-  onesignal_flutter:
-    path: ../
-
 # For information on the generic Dart part of this file, see the
 # following page: https://www.dartlang.org/tools/pub/pubspec