Declare Map.ItemProcessor.ProcessorConfig's Mode and Execution as non-required

[marceliwac]

Overview

• Description: Mode and Execution of Map.ItemProcessor.ProcessorConfig are optional. Furthermore, If Mode is INLINE, ExecutionType should not be specified and doing so throws an error; if Mode is DISTRIBUTED, ExecutionType needs to be specified explicitly as per documentation.
• Schema update type: Remove the requirement for the Mode and ExecutionType
• Services affected: serverless-step-functions plugin (step-functions)

References

• Map schema documentation
• Map schema documentation examples Note: One of the examples only specifies Mode: INLINE, but the current schema invalidates that example.

How was this tested?

To reproduce, add the following state to a state machine:

Validate All:
  Type: Map
  InputPath: "$.detail"
  ItemProcessor:
    ProcessorConfig:
      Mode: INLINE
    StartAt: Validate
    States:
      Validate:
        Type: Task
        Resource: arn:aws:states:::lambda:invoke
        OutputPath: "$.Payload"
        Parameters:
          FunctionName: arn:aws:lambda:us-east-2:123456789012:function:ship-val:$LATEST
        End: true
  End: true
  ResultPath: "$.detail.shipped"
  ItemsPath: "$.shipped"

Removing ProcessorConfig, or adding ExecutionType within it fixes validation, but throws an error during stack deployment. Having just the ExecutionType results in an identical validation error.