Reboots a previously provisioned RDS instance. This API results in the application of modified
DBParameterGroup parameters with ApplyStatus of pending-reboot to the RDS instance. This action is
taken as soon as possible, and results in a momentary outage to the RDS instance during which the RDS
instance status is set to rebooting. If the RDS instance is configured for MultiAZ, it is possible that the
reboot will be conducted through a failover. A DBInstance event is created when the reboot is completed.