CDK CLI falsely detects a change to Chinese characters when there's no change at all.

The Chinese characters are passed into the constructor of Lambda function invoking event rule target as the event object.

Reproduction Steps

new Rule(this, 'MonthlyReminder', {
  enabled: true,
  schedule: Schedule.cron({ day: '1', hour: '0', minute: '0' }),
  targets: [
    new LambdaFunction(sendReminderFn, {
      event: RuleTargetInput.fromObject({ message: '今日五號，請交月報。' }),
    }),
  ],
});

What did you expect to happen?

CDK CLI should know there's no change.

What actually happened?

CDK CLI falsely recognizes there's a change to the Chinese text string. Somehow, CDK CLI shows the current version of the text as a series of question marks "????".

Environment

• CDK CLI Version : 1.93
• Framework Version: 1.93
• Node.js Version: 14.6
• OS : MacOS 10.15.7
• Language (Version): TypeScript (4.1.2)

Other

This is 🐛 Bug Report