fix(nuxt): ensure .output directory is marked as an output

[Coly010]

Current Behavior

Nuxt states that the .output folder is created with a production build, regardless of the buildDir set in the nuxt.config.ts file.
We do not have this folder listed as an output and therefore it is not cached and restored correctly

Expected Behavior

Ensure the .output folder is listed correctly as an output

Related Issue(s)

Fixes #

[vercel]

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1 Ignored Deployment

Name	Status	Preview	Updated (UTC)
nx-dev	⬜️ Ignored (Inspect)	Visit Preview	Jun 6, 2024 11:45am

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✅ Successfully ran 6 targets

• nx affected --targets=e2e,e2e-ci --base=3ff1b5b4f7fd8a85000283bff0ce337e993bd147 --head=00206660bcabc77b56ba0cef29358040b0aa6f67 --parallel=1
• nx run-many -t check-imports check-commit check-lock-files check-codeowners documentation --parallel=1 --no-dte
• nx affected --targets=lint,test,build --base=3ff1b5b4f7fd8a85000283bff0ce337e993bd147 --head=00206660bcabc77b56ba0cef29358040b0aa6f67 --parallel=3
• nx-cloud record -- nx format:check --base=3ff1b5b4f7fd8a85000283bff0ce337e993bd147 --head=00206660bcabc77b56ba0cef29358040b0aa6f67
• nx documentation --no-dte
• nx affected -t e2e-macos-ci --parallel=1 --base=3ff1b5b4f7fd8a85000283bff0ce337e993bd147 --head=00206660bcabc77b56ba0cef29358040b0aa6f67

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[github-actions]

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