[plugin-legacy]-配置@vitejs/plugin-legacy的renderModernChunks选项为false时，无法打包出workers相关的文件

[winteroo]

Describe the bug

我在vite工程中使用workers做复杂计算，在开发环境下是可以正常运行的，但是当我执行打包后，workers无法运行，经过查看打包后的文件，发现缺少了workers打包文件。

打包的文件中，可以找到引入workers的代码:（此时@vitejs/plugin-legacy插件的renderModernChunks为false）

但是在dist文件夹下却没有该文件：

我尝试将@vitejs/plugin-legacy插件中的renderModernChunks设置为true，生成支持现代浏览器的文件，发现打包后是可以正常运行的，且存在该workers文件。

故我猜测是@vitejs/plugin-legacy插件的renderModernChunks配置项影响了workers的打包

Reproduction

https://stackblitz.com/edit/vitejs-vite-fzyjtb?file=worker.js

Steps to reproduce

1. npm install
2. npm run dev ，项目正常启动，并可以在控制台中打印出worker接受到的信息，说明worker正常运行了
3. npm run build 打包后的文件中并没有worker相关文件

System Info

System:
    OS: macOS 14.0
    CPU: (8) arm64 Apple M1 Pro
    Memory: 93.75 MB / 16.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 18.14.2 - /usr/local/bin/node
    Yarn: 1.22.19 - /usr/local/bin/yarn
    npm: 9.5.0 - /usr/local/bin/npm
    pnpm: 7.33.0 - /usr/local/bin/pnpm
  Browsers:
    Chrome: 124.0.6367.119
    Safari: 17.0
  npmPackages:
    @vitejs/plugin-legacy: ^5.4.0 => 5.4.0 
    @vitejs/plugin-vue: ^4.2.3 => 4.2.3 
    vite: ^5.2.11 => 5.2.11

Used Package Manager

pnpm

Logs

No response

Validations

• Follow our Code of Conduct
• Read the Contributing Guidelines.
• Read the docs.
• Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
• Make sure this is a Vite issue and not a framework-specific issue. For example, if it's a Vue SFC related bug, it should likely be reported to vuejs/core instead.
• Check that this is a concrete bug. For Q&A open a GitHub Discussion or join our Discord Chat Server.
• The provided reproduction is a minimal reproducible example of the bug.

[stackblitz]

Start a new pull request in StackBlitz Codeflow.

• vitejs-vite-fzyjtb (Open reproduction)