test(ui): Fix flake in transaction overview (#71660)

static/app/views/performance/transactionSummary/transactionOverview/index.spec.tsx

@@ -565,9 +565,11 @@ describe('Performance > TransactionSummary', function () {
       // It renders the web vitals widget
       await screen.findByRole('heading', {name: 'Web Vitals'});
 
-      const vitalStatues = screen.getAllByTestId('vital-status');
-      expect(vitalStatues).toHaveLength(3);
+      await waitFor(() => {
+        expect(screen.getAllByTestId('vital-status')).toHaveLength(3);
+      });
 
+      const vitalStatues = screen.getAllByTestId('vital-status');
       expect(vitalStatues[0]).toHaveTextContent('31%');
       expect(vitalStatues[1]).toHaveTextContent('65%');
       expect(vitalStatues[2]).toHaveTextContent('3%');