feat!: upgrade to nitropack@0.6 and h3@0.8

[pi0]

🔗 Linked issue

❓ Type of change

• 📖 Documentation (updates to the documentation or readme)
• 🐞 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)
• ⚠️ Breaking change (fix or feature that would cause existing functionality to change)

📚 Description

This PR upgrades nuxt for compatibility with latest nitroapck and h3.

Release notes and breaking changes for h3: https://github.com/unjs/h3/releases/tag/v0.8.0

📝 Checklist

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

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[pi0]

Merging to main to test edge possible issues and also fix current regressions with nuxt-edge and nitro. Will add better breaking change notes to rc changelog.