notif android [nfc]: Pigeon bindings too need resource names in keep.xml

Author: rajveermalviya

android/app/src/main/res/raw/keep.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <!-- This file is necessary for notifications to work in release builds.
 
-     The issue is that the package:flutter_local_notifications API has us
+     The issue is that the Pigeon bindings for notifications API has us
      identify which icon we want to use via a string name, in Dart code,
      and that's invisible to the resource shrinker:
        https://developer.android.com/build/shrink-code#keep-resources