Select: use findBy and make these tests async to avoid act() errors (#42134)

public/app/core/components/Select/TeamPicker.test.tsx

@@ -13,11 +13,11 @@ jest.mock('@grafana/runtime', () => ({
 }));
 
 describe('TeamPicker', () => {
-  it('renders correctly', () => {
+  it('renders correctly', async () => {
     const props = {
       onSelected: () => {},
     };
     render(<TeamPicker {...props} />);
-    expect(screen.getByTestId('teamPicker')).toBeInTheDocument();
+    expect(await screen.findByTestId('teamPicker')).toBeInTheDocument();
   });
 });

public/app/features/dashboard/components/DashboardSettings/GeneralSettings.test.tsx

@@ -35,11 +35,11 @@ const setupTestContext = (options: Partial<Props>) => {
 
 describe('General Settings', () => {
   describe('when component is mounted with timezone', () => {
-    it('should render correctly', () => {
+    it('should render correctly', async () => {
       setupTestContext({});
       screen.getByDisplayValue('test dashboard title');
       screen.getByDisplayValue('test dashboard description');
-      expect(screen.getByTestId(selectors.components.TimeZonePicker.containerV2)).toHaveTextContent(
+      expect(await screen.findByTestId(selectors.components.TimeZonePicker.containerV2)).toHaveTextContent(
         'Coordinated Universal Time'
       );
     });