Update Alert snapshot for role="alert" attribute

[Copilot]

Updated the Jest snapshot for the Alert component to reflect the addition of role="alert" attribute for accessibility improvements.

Changes:

• Updated packages/components/test/__snapshots__/index.tsx.snap to include role="alert" in the Alert component snapshot

The snapshot now correctly represents the rendered output:

<div
  className="emotion-0"
  role="alert"
/>

---

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Project	Deployment	Review	Updated (UTC)
theme-ui	Error		Dec 29, 2025 2:37pm
theme-ui-next	Error		Dec 29, 2025 2:37pm

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