Update dependency next to v15.0.3

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
next (source)	15.0.2 -> 15.0.3

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Release Notes

vercel/next.js (next)

### [`v15.0.3`](https://redirect.github.com/vercel/next.js/compare/v15.0.2...v15.0.3) [Compare Source](https://redirect.github.com/vercel/next.js/compare/v15.0.2...v15.0.3)

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Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

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• [ ] If you want to rebase/retry this PR, check this box

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