test(cli): mark problematic tests as sequential to stabilize CI

packages/cli/src/test-utils/AppRig.test.tsx

@@ -12,7 +12,7 @@ import { debugLogger } from '@google/gemini-cli-core';
 
 const __dirname = path.dirname(fileURLToPath(import.meta.url));
 
-describe('AppRig', () => {
+describe.sequential('AppRig', () => {
   let rig: AppRig | undefined;
 
   afterEach(async () => {

packages/cli/src/test-utils/render.test.tsx

@@ -10,7 +10,7 @@ import { Text } from 'ink';
 import { renderHook, render } from './render.js';
 import { waitFor } from './async.js';
 
-describe('render', () => {
+describe.sequential('render', () => {
   it('should render a component', async () => {
     const { lastFrame, unmount } = await render(<Text>Hello World</Text>);
     expect(lastFrame()).toBe('Hello World\n');
@@ -42,7 +42,7 @@ describe('render', () => {
   });
 });
 
-describe('renderHook', () => {
+describe.sequential('renderHook', () => {
   it('should rerender with previous props when called without arguments', async () => {
     const useTestHook = ({ value }: { value: number }) => {
       const [count, setCount] = useState(0);

packages/cli/src/ui/App.test.tsx

@@ -60,7 +60,7 @@ vi.mock('./components/Footer.js', async () => {
   };
 });
 
-describe('App', () => {
+describe.sequential('App', () => {
   beforeEach(() => {
     (useIsScreenReaderEnabled as Mock).mockReturnValue(false);
   });