Bump Next.js to 14.2.6

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@next/eslint-plugin-next (source)	14.2.5 -> 14.2.6
next (source)	14.2.5 -> 14.2.6
next (source)	^14.2.5 -> ^14.2.6

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Release Notes

vercel/next.js (@​next/eslint-plugin-next)

### [`v14.2.6`](https://togithub.com/vercel/next.js/compare/v14.2.5...v14.2.6) [Compare Source](https://togithub.com/vercel/next.js/compare/v14.2.5...v14.2.6)

vercel/next.js (next)

### [`v14.2.6`](https://togithub.com/vercel/next.js/compare/v14.2.5...v14.2.6) [Compare Source](https://togithub.com/vercel/next.js/compare/v14.2.5...v14.2.6)

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Configuration

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