build(deps): bump next from 15.4.2 to 15.4.3 (#7317)

Bumps [next](https://github.com/vercel/next.js) from 15.4.2 to 15.4.3.
- [Release notes](https://github.com/vercel/next.js/releases)
- [Changelog](https://github.com/vercel/next.js/blob/canary/release.js)
- [Commits](vercel/next.js@v15.4.2...v15.4.3)

---
updated-dependencies:
- dependency-name: next
  dependency-version: 15.4.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]