fix tests

Author: SalmaElsoly

backend/app/setup.go

@@ -109,8 +109,7 @@ func SetUp(t testing.TB) (*App, error) {
   "cluster_health_check_interval_in_hours": 1,
   "reserved_node_health_check_interval_in_hours": 1,
   "reserved_node_health_check_timeout_in_minutes": 1,
-  "reserved_node_health_check_workers_num": 10
-  "cluster_health_check_interval_in_hours": 2,
+  "reserved_node_health_check_workers_num": 10,
   "encryption_passphrase": "test-encryption-passphrase-for-testing-only",
   "encryption_salt": "test-salt-for-testing-environment",
   "argon2": {