fix(接口测试): 修复接口自动化删除csv文件时无法显示文件名的缺陷

frontend/src/business/components/api/automation/scenario/variable/CsvFileUpload.vue

@@ -72,7 +72,7 @@ export default {
       }
     },
     handleRemove(file) {
-      this.$alert('是否确认删除CSV文件：【 ' + file.file.name + " 】？", '', {
+      this.$alert('是否确认删除CSV文件：【 ' + file.file ? file.file.name : file.name + " 】？", '', {
         confirmButtonText: this.$t('commons.confirm'),
         callback: (action) => {
           if (action === 'confirm') {