Update Agheera push URL in client and tests to use production endpoint

src/services/agheeraPushClient.js

@@ -1,7 +1,7 @@
 const fs = require('fs');
 const path = require('path');
 
-const DEFAULT_AGHEERA_PUSH_URL = 'https://push-test.agheera.com/Telematics/Positions';
+const DEFAULT_AGHEERA_PUSH_URL = 'https://push-dhl.agheera.com/Telematics/positions';
 const DEFAULT_AGHEERA_PUSH_LOG_PATH = '/var/log/agheera_push.log';
 
 let httpClientOverride = null;