Invalid type for parameter selectionPattern

[louis0802]

This is a Bug Report

Description

For bug reports:

• What went wrong? Invalid type for parameter selectionPattern
• What did you expect should have happened? The type should be string instead of int
• What was the config you used?

stepFunctions:
  validate: true
  stateMachines: 	
    process:
      name: processStepMachine
      type: EXPRESS
      role:
        Fn::GetAtt: ["ProcessStateMachineRole", "Arn"]
      events:
        - http:
            path: /process
            method: post
            action: StartSyncExecution
            request:
              template:
                application/json: |
                  #set( $body = $util.escapeJavaScript($input.json('$')) )
                  {
                    "input": "$body",
                    "stateMachineArn": "arn:aws:states:${aws:region}:000000000000:stateMachine:processStepMachine"
                  }
      definition:
        StartAt: process
        States:
          process:
            Type: Task
            Resource:
              Fn::GetAtt: [process, Arn]
            End: true  

• What stacktrace or error message from your provider did you see?
  CREATE_FAILED: ApiGatewayMethodProcessPost (AWS::ApiGateway::Method)
  Parameter validation failed:
  Invalid type for parameter selectionPattern, value: 200, type: <class 'int'>, valid types: <class 'str'>

Similar or dependent issues:

• NA

Additional Data

• Serverless Framework Core Version you're using: 3.34.0
• The Plugin Version you're using: 3.17.0
• Operating System: MacOS
• Stack Trace:
• Provider Error messages: Invalid type for parameter selectionPattern, value: 200, type: <class 'int'>, valid types: <class 'str'>

I checked the code and found it is defined in int not string. Does anyone face the same issue? Could I create PR for it?

serverless-step-functions/lib/deploy/events/apiGateway/methods.js

Line 199 in 8772ae7

SelectionPattern: 200,