Modifies the target of an existing Maintenance Window.Show details from next link. https://docs.aws.amazon.com/ja_jp/cli/latest/reference/ssm/update-maintenance-window-target.html
aws ssm update-maintenance-window-target --window-id "mw-0c5ed765acEXAMPLE" --window-target-id "d208dedf-3f6b-41ff-ace8-8e751EXAMPLE" --name "NewTargetName" --description "NewTargetName description" |
| 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 |