🚀 功能建议：支持pnpm构建

[depthwood]

功能描述

现在前端框架大部分已完成pnpm的迁移，打包也推荐使用pnpm打包，期望rainbond能支持一下

使用场景

例如这几个前端框架Vben，soybean，naive-ui-admin都推荐使用pnpm打包了

实现方案（可选）

No response

是否愿意提交 PR 实现该功能

• [ ] 我愿意提交 PR 实现该功能

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Title: 🚀 Feature suggestion: support pnpm build

Function description

Now most of the front-end frameworks have completed the migration to pnpm. It is also recommended to use pnpm for packaging. I hope rainbond can support it.

Usage scenarios

For example, these front-end frameworks Vben, soybean, and naive-ui-admin are recommended to be packaged with pnpm.

Implementation plan (optional)

No response

Are you willing to submit a PR to implement this feature?

• [ ] I am willing to submit a PR to implement this feature