E1031 Fn::ToJsonString is not supported without 'AWS::LanguageExtensions' transform

[Zippy1999]

CloudFormation Lint Version

1.3.6

What operating system are you using?

Mac

Describe the bug

Since upgrading to 1> I am getting the following error:

E1031 Fn::ToJsonString is not supported without 'AWS::LanguageExtensions' transform

At the top of cloud-formation.yaml we have the transform defined

AWSTemplateFormatVersion: 2010-09-09
Transform: 
  - AWS::Serverless-2016-10-31
  - AWS::LanguageExtensions

This was working fine in versions prior to 1.. (works with 0.87.7)

Expected behavior

Linting should pass

Reproduction template

 EventBusSchedule:
   Type: AWS::Scheduler::Schedule
   .......
   Properties:
     ......
     Target:
       Arn: !GetAtt Queue.Arn
       RoleArn: !GetAtt SomeRole.Arn
       Input:
         Fn::ToJsonString:
           somId: mysecret/idnfo
           eventType: success
          ```

[kddejong]

SAM is removing all the transforms from the template so this will work. Thinking about how to resolve this correctly.

Transform: 
  - AWS::LanguageExtensions

Also according to the docs you should flip your transform order.

[Zippy1999]

Great work @kddejong - confirmed all OK now in 1.3.7