🐛 [Bug]: 官网 Pagination 组件例子页码响应性问题

[RuinousCheng]

Version

latest

Vue Version

latest

Link to minimal reproduction

Step to reproduce

https://vue-devui.github.io/components/pagination/#%E6%9E%81%E7%AE%80%E6%A8%A1%E5%BC%8F

step1：

set the pageSize to 5

step2：

set the pageSize to 10

What is expected

组件框中展示的总页码数与下拉框中保持一致，且切换页面大小时同步改变总页码数。

What is actually happening

组件框中展示的总页码数不总是跟随页面大小改变而实时改变，且切换页面大小后不与下拉框中一致

Any additional comments (optional)

No response