Fix cloud guardrails test to use user1 instead of cassandra

Author: aboudreault

tests/integration/cloud/test_cloud.py

@@ -69,8 +69,8 @@ def test_match_system_local(self):
     def test_set_auth_provider(self):
         self.connect(self.creds)
         self.assertIsInstance(self.cluster.auth_provider, PlainTextAuthProvider)
-        self.assertEqual(self.cluster.auth_provider.username, 'cassandra')
-        self.assertEqual(self.cluster.auth_provider.password, 'cassandra')
+        self.assertEqual(self.cluster.auth_provider.username, 'user1')
+        self.assertEqual(self.cluster.auth_provider.password, 'user1')
 
     def test_support_leaving_the_auth_unset(self):
         with self.assertRaises(NoHostAvailable):