链式下拉框无法通过 size 来改变大小，导致选项显示不全

#### 描述问题：

链式下拉框无法通过 size 来改变大小，导致选项显示不全

#### 截图或视频：

#### 如何复现（请务必完整填写下面内容）：

1. 你是如何使用 amis 的？
sdk

2. amis 版本是什么？请先在最新 beta 版本测试问题是否存在
1.10.2

4. 粘贴有问题的完整 `amis schema` 代码：
```
{
"type": "page",
"body": {
"type": "form",
"debug": true,
"api": "/amis/api/mock2/form/saveForm",
"body": [
{
"name": "select3",
"size": "lg",
"type": "chained-select",
"label": "级联下拉",
"source": "/amis/api/mock2/options/chainedOptions?waitSeconds=1&parentId=$parentId&level=$level&maxLevel=4",
"value": "a,b"
}
]
}
}
```

5. 操作步骤
官网文档粘贴 schema 即可复现。

Start at the chained-select component entry point and reproduce the issue using the supplied AMIS schema in the documentation playground. Trace how the `size` value is passed to the chained dropdown, and consider the issue done when `size: "lg"` changes the control so its options are displayed without clipping.

Written by the indexing model from the issue text.