test(ui): bump timeout on SignUpStart unsafeMetadata test

[jacekradko]

The new unsafeMetadata > does not throw when signUp.create rejects with an API error test added in #8500 is flaky — its async chain (multiple userEvent calls + waitFor + findByTestId + microtask flush) sits right at the 5s default timeout and has tipped over twice in a row on the changeset-release/main runner (5006ms, then ~5000ms). Bumping this one test to 15s so a marginally slower runner doesn't flip it red.

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Latest commit: 83b1a8a

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Project	Deployment	Actions	Updated (UTC)
clerk-js-sandbox	Ready	Preview, Comment	May 7, 2026 10:29pm

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Reviewing files that changed from the base of the PR and between 6408ab6 and 83b1a8a.

📒 Files selected for processing (2)

• .changeset/signup-start-test-timeout.md
• packages/ui/src/components/SignUp/__tests__/SignUpStart.test.tsx

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📝 Walkthrough

Walkthrough

This PR makes a minimal change to address async test timeout issues. It increases the timeout window from the default to 15 seconds for an async test in SignUpStart that handles unsafeMetadata errors when signUp.create rejects with a ClerkAPIResponseError. The test adjustment prevents premature failures during microtask completion. A corresponding empty changeset file is added to document this fix.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title accurately and concisely summarizes the main change: bumping a timeout on a specific SignUpStart test related to unsafeMetadata.
Description check	✅ Passed	The description is directly related to the changeset, providing context about the flaky test, the specific timeout issue, and the rationale for the 15s increase.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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commit: 83b1a8a