crud字段filterable中的source无法获取父级变量

#### 描述问题：

crud中filterable使用source方式设置options，参数无法调用父级的变量

#### 截图或视频：

```
{
type: "text",
label: "存放地点",
name: "project_name",
filterable: {
source: {
method: "get",
url: "/api/project/getselectoptions?with_all=0",
data: {
ignore_project_id: "${target_project_id}"
},
cache: 10000
}
}
},
```
data的ignore_project_id无法获取target_project_id变量值

#### 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
2.0.0,2.0.1,2.0.2均试过，都不可以

3. 粘贴有问题的完整 `amis schema` 代码：
```

```

4. 操作步骤

Start by reproducing the issue in the CRUD configuration shown, using the filterable source and its data.ignore_project_id expression. Test the reported SDK versions 2.0.0, 2.0.1, and 2.0.2, and verify whether the parent target_project_id value reaches the request. Done means the parent variable is resolved correctly in the source request.

Written by the indexing model from the issue text.