AWS CDK の Rule で FargateのECSタスクをターゲットにしたらエラーになった問題の解決

const cluster = Cluster.fromClusterArn(this, 'FromClusterArn', 'XArn');
const taskDefinition = TaskDefinition.fromTaskDefinitionArn(this, 'FromTaskDefinitionArn', 'XxArn');
const target = new EcsTask({
  cluster,
  taskDefinition,
  containerOverrides: [{ containerName: 'container', command: ['xxx'] }],
});

new Rule(this, 'Rule', {
  ruleName: 'XxxxRule',
  schedule: Schedule.cron({ hour: '15', minute: '0' }),
  targets: [target],
});