Consider exception to `no-attribute-value` if type is checkbox/radio

Checkboxes and radios are unique in that they have a default value of `"on"`. If you use property binding, you cannot take advantage of this:

```js
html`` // will submit as string "undefined"
html`` // will submit as empty string ""
html`` // will submit as empty string ""
```

Whereas if you use the attribute binding, you can conditionally render the attribute and fallback to the default:

```js
html`` // will submit as "on"
```

In my testing this works correctly even if a value is initially set, and later changed, or if attribute is later removed.

Happy to attempt a PR if you don't object

查看 eslint-plugin-lit 的 codebase 中的 'no-attribute-value' 规则，可能位于 src/rules/。了解它目前如何标记属性绑定。变更涉及为 type 为 'checkbox' 或 'radio' 的 input 元素添加例外。检查该规则如何分析 AST 节点以识别元素类型和属性。通过运行现有测试并为 checkbox/radio 情况添加新测试来测试该更改。

由索引模型根据 Issue 内容生成。