fix(nuxt): exclude 'body' when making GET request with useFetch

[danielroe]

🔗 Linked issue

#20667

❓ 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 excludes a body when performing GET requests. Might be worth waiting until v3.6 release to have more time to test. Might also be worth moving upstream to ofetch instead of within Nuxt.

📝 Checklist

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

[danielroe]

Closing to implement in new nitro types rework in nitrojs/nitro#1532.