feat!: upgrade vue-i18n v10

[kazupon]

🔗 Linked issue

ref: #3002

❓ Type of change

• 📖 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

This PR is release for nuxt-i18n v9.

The breaking change of vue-i18n v10 is here:
https://vue-i18n.intlify.dev/guide/migration/breaking10.html

Currently, vue-i18n v10 is beta.
I’m going to release nuxt-i18n v9 official relerase together vue-i18n v10 official relerase

Additional, unpluing-vue-i18n v5 has dropped jitCompilation option. jit compilation is default.
so, we'll remove nuxt-i18n jit option in this PR.
https://github.com/intlify/bundle-tools/releases/tag/unplugin-vue-i18n%405.0.0-beta.0

📝 Checklist

• I have linked an issue or discussion.
• I have added tests (if possible).
• I have updated the documentation accordingly.