Update nextjs monorepo to v16.1.6

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
eslint-config-next (source)	16.1.3 → 16.1.6
next (source)	16.1.5 → 16.1.6

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Release Notes

vercel/next.js (eslint-config-next)

v16.1.6

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[!NOTE]
This release is backporting bug fixes. It does not include all pending features/changes on canary.

Core Changes

• Upgrade to swc 54 (#​88207)
• implement LRU cache with invocation ID scoping for minimal mode response cache (#​88509)
• tweak LRU sentinel key (#​89123)

Credits

Huge thanks to @​mischnic, @​wyattjoh, and @​ztanner for helping!

v16.1.5

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Please refer the following changelogs for more information about this security release:

https://vercel.com/changelog/summaries-of-cve-2025-59471-and-cve-2025-59472
https://vercel.com/changelog/summary-of-cve-2026-23864

v16.1.4

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