fix(接口测试): 修复导入ms格式的带用例的接口定义，用例的创建人不是导入用户

--user=郭雨琦
--bug=1015673
https://www.tapd.cn/55049933/bugtrace/bugs/view/1155049933001015673

backend/src/main/java/io/metersphere/api/service/ApiDefinitionService.java

@@ -992,6 +992,8 @@ public class ApiDefinitionService {
         for (int i = 0; i < caseList.size(); i++) {
             ApiTestCaseWithBLOBs apiTestCaseWithBLOBs = caseList.get(i);
             apiTestCaseWithBLOBs.setApiDefinitionId(apiDefinition.getId());
+            apiTestCaseWithBLOBs.setCreateUserId(Objects.requireNonNull(SessionUtils.getUser()).getId());
+            apiTestCaseWithBLOBs.setUpdateUserId(Objects.requireNonNull(SessionUtils.getUser()).getId());
             if (apiDefinition.getToBeUpdated() != null && !apiTestCaseWithBLOBs.getVersionId().equals("cover")) {
                 apiTestCaseWithBLOBs.setToBeUpdated(true);
                 //TODO:check setting