Step Functions State Machine with Single-Line DefinitionString

This template creates a Step Functions state machine with a single-line property. The state machine is named 'HelloWorld-StateMachine' and has a state machine type of 'STANDARD'. The definition of the state machine is specified using a JSON string, which includes a single 'Task' state named 'HelloWorld' that invokes a Lambda function. The state machine is associated with an IAM role.