test(webview-settings): increase change-detection test timeout to resolve CI flakes

Author: Test User

webview-ui/src/components/settings/__tests__/SettingsView.change-detection.spec.tsx

@@ -1,8 +1,11 @@
-import { act, render, screen, fireEvent, waitFor } from "@testing-library/react"
+import { act, render, screen, fireEvent, waitFor, configure } from "@testing-library/react"
 import { vi, describe, it, expect, beforeEach } from "vitest"
 import { QueryClient, QueryClientProvider } from "@tanstack/react-query"
 import React from "react"
 
+// Increase timeout for slow CI environments
+configure({ asyncUtilTimeout: 10000 })
+
 // Mock vscode API
 const mockPostMessage = vi.hoisted(() => vi.fn())
 const mockVscode = {