Add manifest permission to post notifications

This fixes the problem where notifications won't show for generic or qa build variants on Android 13.

Signed-off-by: Adam Serbinski <37986043+ASerbinski@users.noreply.github.com>

app/src/main/AndroidManifest.xml

@@ -87,6 +87,8 @@
     <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
     <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
 
+    <uses-permission android:name="android.permission.POST_NOTIFICATIONS"/>
+
     <permission
         android:name="${applicationId}.${broadcastPermission}"
         android:protectionLevel="signature" />