fix(用例管理): 修复功能用例更新人有排序问题

--bug=1040021 --user=郭雨琦 https://www.tapd.cn/55049933/bugtrace/bugs/view/1155049933001040021

frontend/src/views/case-management/caseManagementFeature/components/caseTable.vue

@@ -656,10 +656,6 @@
       showTooltip: true,
       dataIndex: 'updateUserName',
       titleSlotName: 'updateUserFilter',
-      sortable: {
-        sortDirections: ['ascend', 'descend'],
-        sorter: true,
-      },
       showInTable: true,
       width: 200,
       showDrag: true,

frontend/src/views/case-management/caseManagementFeature/components/recycleCaseTable.vue

@@ -443,10 +443,6 @@
       slotName: 'updateUserName',
       dataIndex: 'updateUser',
       titleSlotName: 'updateUserFilter',
-      sortable: {
-        sortDirections: ['ascend', 'descend'],
-        sorter: true,
-      },
       showInTable: true,
       showTooltip: true,
       width: 200,