Bump next to ^15.1.5

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
next (source)	^15.1.4 -> ^15.1.5

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Release Notes

vercel/next.js (next)

v15.1.5

Compare Source

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

Core Changes

• Fix missing revalidate with notFound() (#​75009)
• fix: when metadatabase is set we should not warn (#​74840)
• Fix @​vercel/og license SPDX expression (#​74745)
• fix: ts language server rule metadata should allow null (#​74704)
• fix: eslint rule of using img in metadata routes (#​74864)
• Fix presentation when onerror receives an event without error (#​74643)
• fix fetch lock not being consistently released #​74623 (#​75028)

Credits

Huge thanks to @​ijjk, @​huozhi, @​matmannion and @​ztanner for helping!

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