tabs设置的disabled优先级没有form的高

#### 描述问题：

form设置了属性disabled
但是我不想让form下面的tabs禁用，给tabs设置了disabled，结果无效，tabs仍然是禁用。
希望是tabs设置的disabled属性优先级更高

#### 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？
npm

2. amis 版本是什么？请先在最新 beta 版本测试问题是否存在
6.2.2

3. 粘贴有问题的完整 `amis schema` 代码：
```
{
"type": "form",
"body": [
{
"type": "tabs",
"tabs": [
{
"title": "Tab 1",
"disabled": false,
"body": [
{
"type": "tpl",
"tpl": "Content",
"id": "u:6b421b486ddf"
}
],
"id": "u:f65b32ad9ef6"
},
{
"title": "Tab 2",
"body": [
{
"type": "tpl",
"tpl": "Content"
}
],
"disabled": false
}
],
"disabled": false,
"id": "u:d3fbf1dd5f29"
}
],
"disabled": true,
"id": "u:70d586f0d433",
"actions": [
{
"type": "submit",
"label": "提交",
"primary": true,
"id": "u:54c611c65732"
}
],
"feat": "Insert"
}
```

4. 操作步骤
1. 复制code
2. 打开官方编辑器
3. 粘贴到code里面
4. 查看tab是否禁用

Start with the provided amis schema in the official editor and inspect how the form and tabs disabled settings are resolved. Reproduce the case with the form disabled and the nested tabs explicitly enabled; done means the tabs remain usable despite the parent form setting.

Written by the indexing model from the issue text.