perf: replace debug with obug

[sxzz]

Description

Replace debug with obug, a pure ESM package.

Additional context

Vite side: vitejs/vite#21107

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What is the purpose of this pull request?

• Bug fix
• New Feature
• Documentation update
• Other

Before submitting the PR, please make sure you do the following

• Read the Contributing Guidelines.
• Read the Pull Request Guidelines and follow the PR Title Convention.
• Check that there isn't already a PR that solves the problem the same way to avoid creating a duplicate.
• Provide a description in this PR that addresses what the PR is solving, or reference the issue that it solves (e.g. fixes #123).
• Ideally, include relevant tests that fail without this PR but pass with it.

[pkg-pr-new]

Open in StackBlitz

npm i https://pkg.pr.new/@vitejs/plugin-vue@705 

npm i https://pkg.pr.new/@vitejs/plugin-vue-jsx@705 

commit: 5e22017

[sapphi-red]

@sxzz BTW I didn't know about this feature and I didn't find a description in the docs. I think it'd be nice to have one.

[sxzz]

It's already on the docs https://tsdown.dev/options/config-file#config-file

[sapphi-red]

Ah, I missed that last sentence.