fix: conditionally render user selection for public function type

--bug=1053743 --user=刘瑞斌 【需求转缺陷】【内置函数】- 去掉按创建用户的搜索选项 https://www.tapd.cn/57709429/s/1675143

Author: liuruibin

ui/src/views/function-lib/index.vue

@@ -8,6 +8,7 @@
       <h4></h4>
       <div class="flex-between">
         <el-select
+          v-if="functionType === 'PUBLIC'"
           v-model="selectUserId"
           class="mr-12"
           style="max-width: 240px; width: 150px"