ignore css file on server bundler / 服务端构建时忽略 css 文件

Only ignore `.css`, `*.module.css` will still process by `bundler` to generate `.json` file.

### webpack

```js
{
  test: CSS_RE,
  exclude: CSS_MODULES_RE,
  sideEffects: true,
  use: [
    {
      loader: require.resolve('@ies/pace-kit/ignore-loader.cjs'),
    },
  ],
}
```