Add POST_NOTIFICATIONS permission for Android 13/T.
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.google.firebase.messaging">
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
+ <uses-permission android:name="android.permission.POST_NOTIFICATIONS"/>
<uses-permission android:name="android.permission.WAKE_LOCK" />
<!-- Required by older versions of Google Play services to create IID tokens -->
<uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" />
