fix(deps): update nextjs monorepo to ^14.2.15

[homarr-renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
@next/eslint-plugin-next (source)	dependencies	patch	^14.2.14 -> ^14.2.15
next (source)	dependencies	patch	^14.2.14 -> ^14.2.15

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Release Notes

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

### [`v14.2.15`](https://redirect.github.com/vercel/next.js/compare/v14.2.14...v14.2.15) [Compare Source](https://redirect.github.com/vercel/next.js/compare/v14.2.14...v14.2.15)

vercel/next.js (next)

### [`v14.2.15`](https://redirect.github.com/vercel/next.js/compare/v14.2.14...v14.2.15) [Compare Source](https://redirect.github.com/vercel/next.js/compare/v14.2.14...v14.2.15)

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This PR has been generated by Renovate Bot.

[deepsource-io[bot]]

Here's the code health analysis summary for commits 6f2bc8e..0027a54. View details on DeepSource ↗.

Analysis Summary

Analyzer	Status	Summary	Link
JavaScript	✅ Success		View Check ↗

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[github-actions[bot]]

Coverage Report

Status	Category	Percentage	Covered / Total
🔵	Lines	39%	14551 / 37307
🔵	Statements	39%	14551 / 37307
🔵	Functions	35.77%	381 / 1065
🔵	Branches	70.57%	1295 / 1835

File Coverage

No changed files found.

Generated in workflow #3196 for commit 0027a54 by the Vitest Coverage Report Action