Fix Ads API URL tests

Author: mynetx

test/detection_tests.php

@@ -269,15 +269,15 @@ public function testGetEndpoint()
       'ton/bucket/:bucket'
     );
     $this->assertEquals(
-      'https://ads-api.twitter.com/2/accounts/1234/campaigns',
+      'https://ads-api.twitter.com/4/accounts/1234/campaigns',
       $cb->call(
         '_getEndpoint',
         ['ads/accounts/1234/campaigns', 'ads/accounts/:account_id/campaigns']
       ),
       'ads/accounts/:account_id/campaigns'
     );
     $this->assertEquals(
-      'https://ads-api-sandbox.twitter.com/2/accounts/1234/campaigns',
+      'https://ads-api-sandbox.twitter.com/4/accounts/1234/campaigns',
       $cb->call(
         '_getEndpoint',
         ['ads/sandbox/accounts/1234/campaigns', 'ads/sandbox/accounts/:account_id/campaigns']