[app-builder] fix unit test (#211)

Author: desAweis

app-knowledge/plugins/edm-knowledge/src/test/java/modelengine/jade/knowledge/EdmKnowledgeBaseManagerTest.java

@@ -30,6 +30,7 @@
 import java.io.IOException;
 import java.lang.reflect.Field;
 import java.sql.Timestamp;
+import java.util.TimeZone;
 
 /**
  * 表示 {@link EdmKnowledgeBaseManager} 的测试集
@@ -64,6 +65,7 @@ void teardown() throws IOException {
     @Test
     @DisplayName("查询知识库列表成功")
     public void shouldOkWhenListRepo() {
+        TimeZone.setDefault(TimeZone.getTimeZone("UTC"));
         ListKnowledgeQueryParam param = new ListKnowledgeQueryParam();
         param.setName("ok");
         EdmListRepoEntity entity = manager.listRepos(param);