fix unit test failure since typo on value property

Author: Yang Guo

platform-control-center/src/test/java/com/flow/platform/cc/test/service/AgentServiceTest.java

@@ -72,7 +72,7 @@ public class AgentServiceTest extends TestBase {
     @Value("${agent.config.ws}")
     private String wsDomain;
 
-    @Value("{agent.config.cc}")
+    @Value("${agent.config.cc}")
     private String ccDomain;
 
     @Test