return highest number like ios, will add 1 in normal

Author: Rohit3523

android/fastlane/Fastfile

@@ -73,8 +73,7 @@ platform :android do
     UI.success("Highest: #{highest_version}")
     UI.success("Highest + 1: #{highest_version + 1}")
 
-    next_version = highest_version + 1
-    puts next_version
+    puts highest_version
   end
 
   desc "Upload App to Play Store Internal (Circle CI)"