### Is there an existing issue for this?

- [X] I have searched the existing issues

### Current Behavior

when describing using cloudformation YAML with Definition, LocalStack fails to create StateMachine. Switching to YAML with DefinitionString works as expected. 

Examples taken from here
https://docs.aws.amazon.com/step-functions/latest/dg/development-options.html#development-options-format

Attaching working example 
[localstack_stepfunctions_and_serverless.zip](https://github.com/localstack/localstack/files/7791134/localstack_stepfunctions_and_serverless.z




### Expected Behavior

YAML with Definition is much more preferable in a complex state machine description with bunch of substitutions, references and parameters

### How are you starting LocalStack?

With the `localstack` script

### Steps To Reproduce

#### How are you starting localstack (e.g., `bin/localstack` command, arguments, or `docker-compose.yml`)

    localstack --debug start -d

#### Client commands (e.g., AWS SDK code snippet, or sequence of "awslocal" commands)

   awslocal s3 mb s3://s4-echo-serverless-deployment-share-local
sls deploy --stage local


### Environment

```markdown
- OS: OSX Monterey
- LocalStack: latest
```


### Anything else?

Error when using YAML with Definition
[error.txt](https://github.com/localstack/localstack/files/7791149/error.txt)

Success when using YAML with DefinitionString
[success.txt](https://github.com/localstack/localstack/files/7791151/success.txt)


TYPE = "AWS::StepFunctions::StateMachine"  
    SCHEMA = util.get_schema_path(Path(__file__))  
    def create(
        self,
        request: ResourceRequest[StepFunctionsStateMachineProperties],
    ) -> ProgressEvent[StepFunctionsStateMachineProperties]:
        """
        Create a new resource.
        Primary identifier fields:
          - /properties/Arn
        Required properties:
          - RoleArn
        Create-only properties:
          - /properties/StateMachineName
          - /properties/StateMachineType
        Read-only properties:
          - /properties/Arn
          - /properties/Name
          - /properties/StateMachineRevisionId
        IAM permissions required:
          - states:CreateStateMachine
          - iam:PassRole
          - s3:GetObject
        """
        model = request.desired_state
        step_function = request.aws_client_factory.stepfunctions
        if not model.get("StateMachineName"):
            model["StateMachineName"] = util.generate_default_name(
                stack_name=request.stack_name, logical_resource_id=request.logical_resource_id
            )