AWS::StepFunctions::StateMachine fails when using old definition style

[ccassidy-vaisala]

CloudFormation Lint Version

1.38.0

What operating system are you using?

Amazon Linux 2023

Describe the bug

It appears #3524 may have cropped up again, I have a step function using the legacy Iterator/ItemsPath configuration and it is throwing E3601:

E3601 'ItemProcessor' is a required property
template.yml:257:11

E3601 Additional properties are not allowed ('Iterator' was unexpected)
template.yml:270:13

Expected behavior

Do not throw error, maybe warning considering this legacy style is deprecated?

Reproduction template

Resources:
  StateMachine:
    Type: AWS::StepFunctions::StateMachine
    Properties:
      Definition:
        StartAt: ProcessMap
        States:
          ProcessMap:
            Type: Map
            Next: EndState
            ItemsPath: "$.items"
            Iterator:
              StartAt: ProcessingTask
              States:
                ProcessingTask:
                  Type: Task
                  End: true
          EndState:
            End: true
            Type: Pass