chore: update extends in renovate

[shinGangan]

🔗 Linked issue

related nuxt-modules/i18n#2827

❓ 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)
• 🧹 Chore (updates to the build process or auxiliary tools and libraries)

📚 Description

The following this changes were made in this PR.

• config:base is renamed to config:recommended.
  • ref: renovatebot/renovate#21136

📝 Checklist

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

[shinGangan]

Hi @kazupon .

This is the same response that you reviewed in the Nuxt I18n repository.

This PR is low priority and would be appreciated if you could review them when you are available. 🙏

[kazupon]

Thank you! ❤️