refactor(系统设置): 用户组更新接口不传name会报错

--bug=1029536 --user=陈建星 系统设置-用户组-后台问题汇总 https://www.tapd.cn/55049933/s/1411174

backend/services/system-setting/src/main/java/io/metersphere/system/service/GlobalUserRoleService.java

@@ -87,6 +87,10 @@ public class GlobalUserRoleService extends BaseUserRoleService {
     }
 
     public void checkExist(UserRole userRole) {
+        if (StringUtils.isBlank(userRole.getName())) {
+            return;
+        }
+
         UserRoleExample example = new UserRoleExample();
         UserRoleExample.Criteria criteria = example.createCriteria()
                 .andNameEqualTo(userRole.getName())

backend/services/system-setting/src/test/java/io/metersphere/system/controller/GlobalUserRoleControllerTests.java

@@ -116,6 +116,11 @@ class GlobalUserRoleControllerTests extends BaseTest {
         Assertions.assertEquals(request.getType(), userRoleResult.getType());
         Assertions.assertEquals(request.getDescription(), userRoleResult.getDescription());
 
+        // 不修改信息
+        UserRoleUpdateRequest emptyRequest = new UserRoleUpdateRequest();
+        emptyRequest.setId(addUserRole.getId());
+        this.requestPostWithOk(DEFAULT_UPDATE, emptyRequest);
+
         // @@校验日志
         checkLog(request.getId(), OperationLogType.UPDATE);