fix(nuxt): remove experimental reactivityTransform (vue 3.4)

[huang-julien]

🔗 Linked issue

https://github.com/vuejs/ecosystem-ci/actions/runs/7001986839/job/19044928365 fix the nuxt ci

❓ Type of change

Hi 👋 this PR removes the reactivity transform from SugarCounter within our basic test fixtures since vue 3.4 removes it.

• 📖 Documentation (updates to the documentation, readme or JSdoc annotations)
• 🐞 Bug fix (a non-breaking change that fixes an issue)
• 👌 Enhancement (improving an existing functionality like performance)
• ✨ New feature (a non-breaking change that adds functionality)
• 🧹 Chore (updates to the build process or auxiliary tools and libraries)
• ⚠️ Breaking change (fix or feature that would cause existing functionality to change)

📚 Description

📝 Checklist

• I have linked an issue or discussion.
• I have updated the documentation accordingly.

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[danielroe]

This is great - thank you ❤️

Would you rename the component or disable the lint rule?

[huang-julien]

@danielroe we also need to remove the reactivity transform from the experimental config, otherwise types will also probably break in the ecosystem ci. Let's do this in this PR.

This is going to be a breaking change for users using reactiveTransform

[danielroe]

We can add migration steps in the release. We'll also need to update the docs

[manniL]

Couldn't we install the macro if the option is set and warn the user? That way, it could reduce breakage and apps would still work, right? 🤔

[antfu]

Vue Macros has Nuxt Integration, I guess we could mention it in the migration note? https://vue-macros.dev/guide/nuxt-integration.html

[nuxt-studio]

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[codecov-commenter]

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[huang-julien]

Note that this feature has been marked as deprecated in Vue 3.3 and is planned to be removed from core in Vue 3.4. this was already warned in the JSDoc.
Should we add the installation of vue-macro in another PR ?