next lint shows initial setup prompt even though package.json has eslintConfig key

[stefanprobst]

Verify canary release

• I verified that the issue exists in the latest Next.js canary release

Provide environment information

Operating System:
  Platform: linux
  Arch: x64
  Version: #49~20.04.1-Ubuntu SMP Thu Aug 4 19:15:44 UTC 2022
Binaries:
  Node: 16.17.0
  npm: 8.15.0
  Yarn: 1.22.19
  pnpm: 7.9.0
Relevant packages:
  next: 12.2.6-canary.7
  eslint-config-next: N/A
  react: 18.2.0
  react-dom: 18.2.0

What browser are you using? (if relevant)

No response

How are you deploying your application? (if relevant)

No response

Describe the Bug

i have a package.json file with eslint configured.

when running next lint it shows the "How would you like to configure ESLint" prompt.

Expected Behavior

don't prompt to setup eslint when it is already configured in package.json

Link to reproduction

n/a

To Reproduce

1. add eslintConfig to package.json
2. run npm run lint

issue seems to be that hasEslintConfiguration returns:

{
  "exists": false,
  "emptyEslintrc": false,
  "emptyPkgJsonConfig": false
}

https://github.com/vercel/next.js/blob/canary/packages/next/lib/eslint/hasEslintConfiguration.ts#L35 will never return with exists: true

[balazsorban44]

This seems to have been introduced in #39872 as the first release I could verify this in was 12.2.6-canary.3

[github-actions]

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