fix(amplify-provider-awscloudformation): fix test (#6955)

This test was failing locally because the output contained
colors that are not present in the assertion logic.

Co-authored-by: Colin Ihrig <colihrig@amazon.com>

packages/amplify-provider-awscloudformation/src/__tests__/iterative-deployment/stack-progress-printer.test.ts

@@ -5,6 +5,21 @@ import columnify from 'columnify';
 const printer: IStackProgressPrinter = new StackProgressPrinter();
 jest.mock('columnify');
 
+// Make sure that chalk colors are stripped for the test.
+function chalkMock(input) {
+  if (input instanceof Date) {
+    return input.toString();
+  }
+
+  return input;
+}
+
+jest.mock('chalk', () => ({
+  green: jest.fn().mockImplementation(chalkMock),
+  red: jest.fn().mockImplementation(chalkMock),
+  reset: jest.fn().mockImplementation(chalkMock),
+}));
+
 describe('StackProgressPrinter', () => {
   test('print events order by Timestamp', () => {
     printer.addActivity({