fix: selecting 'n' when running `devtools enable|disable` throws error

🐛 The bug

Created a new v3 nuxt app. devtools is listed as enabled by default in the generated config file:

// https://nuxt.com/docs/api/configuration/nuxt-config
export default defineNuxtConfig({
  devtools: { enabled: true }
})

Upon trying to disable dev tools via npx nuxi@latest devtools disable it prompted me to install the devtools-wizard:

❯ npx nuxi@latest devtools disable
Nuxi 3.6.5                                                                                                                                                                                            
Need to install the following packages:
  @nuxt/devtools-wizard@0.7.1
Ok to proceed? (y)

If i enter n (or anything not y), it throws an error.

Ok to proceed? (y) n
npm ERR! canceled

npm ERR! A complete log of this run can be found in:
npm ERR!     /Users/gilzow/.npm/_logs/2023-07-26T20_47_43_752Z-debug-0.log

 ERROR  Command failed with exit code 1: npx @nuxt/devtools-wizard@latest disable /Users/gilzow/projects/delete/nuxt-test/mynuxtapp                                                                   3:48:43 PM

  at makeError (/Users/gilzow/.npm/_npx/b95349761371180e/node_modules/nuxi/dist/shared/nuxi.e25041ef.mjs:619:11)
  at handlePromise (/Users/gilzow/.npm/_npx/b95349761371180e/node_modules/nuxi/dist/shared/nuxi.e25041ef.mjs:1108:26)
  at process.processTicksAndRejections (node:internal/process/task_queues:95:5)
  at async Object.invoke (/Users/gilzow/.npm/_npx/b95349761371180e/node_modules/nuxi/dist/chunks/devtools.mjs:40:5)
  at async _main (/Users/gilzow/.npm/_npx/b95349761371180e/node_modules/nuxi/dist/cli.mjs:49:20)

Same thing happens if I do npx nuxi@latest devtools enable and select anything that isn't y at the prompt.

🛠️ To reproduce

n/a

🌈 Expected behavior

if the user selects n, the cli should simply exit

ℹ️ Additional context

No response

Start by tracing the devtools enable and devtools disable CLI commands, especially where they invoke the devtools wizard. Reproduce the prompt with npx nuxi@latest devtools enable or disable and choose a non-y response; done means the command exits cleanly without reporting an error.