Loader doesn't work, but plugin does

What am I missing? I have this config under `module.rules`:
```
{
test: /\.js$/,
exclude: /node_modules/,
enforce: 'post',
use: {
loader: WebpackObfuscator.loader,
options: {
debugProtection: true,
disableConsoleOutput: true,
rotateStringArray: true,
selfDefending: true,
}
}
}
```

And it doesn't obfuscate. But if I use it as a plugin:
```
new WebpackObfuscator({
debugProtection: true,
disableConsoleOutput: true,
rotateStringArray: true,
selfDefending: true,
}),
```

Then it works just fine 🤔

```
"javascript-obfuscator": "^3.0.0",
"webpack": "^5.65.0",
"webpack-obfuscator": "^3.5.0"
```

首先使用 javascript-obfuscator 3.0.0、webpack 5.65.0 和 webpack-obfuscator 3.5.0 重现报告中的 module.rules loader 配置，然后将其与可正常工作的 plugin 配置进行比较。当 loader 使用相同的选项对生成的 JavaScript 进行混淆，或 issue 记录了所需的 loader 配置时，即可视为完成。

由索引模型根据 Issue 内容生成。