add device_type to shouldSendReceivedReceiptWhenEnabled test

- put "device_type" of 1 (ANDROID) to the payload

Author: nan-li

OneSignalSDK/unittest/src/test/java/com/test/onesignal/GenerateNotificationRunner.java

@@ -1268,7 +1268,10 @@ public void shouldSendReceivedReceiptWhenEnabled() throws Exception {
       assertReportReceivedAtIndex(
          2,
          "UUID",
-         new JSONObject().put("app_id", appId).put("player_id", ShadowOneSignalRestClient.pushUserId)
+         new JSONObject()
+                 .put("app_id", appId)
+                 .put("player_id", ShadowOneSignalRestClient.pushUserId)
+                 .put("device_type", 1)
       );
    }