fix(接口定义): 修复dubbo协议报错404的缺陷

--bug=1018955 --user=王孝刚 【接口测试】接口定义-dubbo协议-输入正确的Registry Center-Get
provider list失败 https://www.tapd.cn/55049933/s/1278771

api-test/frontend/src/api/home.js

@@ -30,7 +30,7 @@ export function apiRunningTask(id, params) {
 }
 
 export function dubboProviders(params) {
-  return post('/home/dubbo/providers', params);
+  return post('/home/api/dubbo/providers', params);
 }
 
 export function databaseValidate(params) {