refactor: fix some deprecation warnings

[fu050409]

处理弃用警告

What's Changed

1. 修复了以下警告：

   [vite] warning:
   C:/Users/nocti/Desktop/Workspace/vue-devui/packages/devui-vue/docs/.vitepress/demo/Demo.vue
   28 |      const DemoComponent =
   29 |        props.demoList?.[props.targetFilePath]?.default ?? defineAsyncComponent(() => import(/* vite-ignore */ props.targetFilePath));
   30 |      watch(
      |      ^
   31 |        () => route.path,
   32 |        (path) => {
   The above dynamic import cannot be analyzed by vite.
   See https://github.com/rollup/plugins/tree/master/packages/dynamic-import-vars#limitations for supported dynamic import formats. If this is intended to be left as-is, you can use the /* @vite-ignore */ comment inside the import() call to suppress this warning.

   已知这是一个拼写错误，vite要求使用/* @vite-ignore */而不是/* vite-ignore */。

2. 修复了 [@vue/compiler-sfc] ::v-deep usage as a combinator has been deprecated. Use :deep(<inner-selector>) instead of ::v-deep <inner-selector>.，这是由于新版的Vue使用:deep(<inner-selector>)而不是::v-deep <inner-selector>。

3. 更新了CONTRIBUTING.md，之前的PR已经被Merge，我们无需要求开发者使用旧版pnpm。

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[fu050409]

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这个机器人怎么回事

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[BigFrontEnd-China]

这个代码还没merge到dev分支吗？目前还是有这个错误

[BigFrontEnd-China]

按@vite-ignore修复后OK了

[fu050409]

按@vite-ignore修复后OK了

目前还是在等 @GreatZPP 的 review，社区这边应该是有统一时间对 PR 进行审查合并

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