Modifies a task assigned to a Maintenance Window.Show details from next link. https://docs.aws.amazon.com/ja_jp/cli/latest/reference/ssm/update-maintenance-window-task.html
aws ssm update-maintenance-window-task --window-id "mw-0c5ed765acEXAMPLE" --window-task-id "1111-2222-3333-4444-5555" --targets "Key=WindowTargetIds |
| Schedule Patch Updates Using a Maintenance Window - AWS Systems Manager : http://docs.aws.amazon.com/systems-manager/latest/userguide/maintenance-windows-cli-tutorials-update.html |