chore: replace tsup to tsdown, set the "type" of the playground to "module" to adapt to the new version of Vite

[Groupguanfang]

Description

replace tsup to tsdown

Currently it have some problem: since tsdown uses isolated declaration, each default export must explicitly specify the type; otherwise, an error will occur. However, I personally think it's not a big deal. At least the development speed has increased significantly⚡️

Set the "type" of the playground to "module" to adapt to the new version of Vite

The new version of Vite no longer supports CommonJS, and an error occurs when opening the playground. Setting type: module can solve this problem.

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[socket-security]

Review the following changes in direct dependencies. Learn more about Socket for GitHub.

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[Groupguanfang]

I upgraded the dependencies, the CI should be back to normal now. Take a look 👀

[Groupguanfang]

I found that unplugin has an UnpluginInstance 🤔 It might be better to use this directly.