Update hostname in PingMonitor test

Probe/Tests/Utils/PingMonitor.test.ts

@@ -10,7 +10,7 @@ describe('Ping', () => {
     jest.setTimeout(240000);
     test('Ping.ping should return appropriate object if the valid hostname is given', async () => {
         let result: PingResponse | null = await Ping.ping(
-            new Hostname('google.com')
+            new Hostname('apple.com')
         );
 
         expect(result).not.toBeNull();