Describe the bug

If a StepFunction definition contains a nested array, the nested array is serialized as an object where the keys are the array indices.

This looks like an issue with the FieldUtils.renderObject method.

Duplicate of #14599

Expected Behavior

I would expect the following to be logged to the console

{"myNestedArray":[[[123,123],[456,456]]]}

Current Behavior

Current behavior treats the nested array as an object and adds indices
{"myNestedArray":[{"0":[123,123],"1":[456,456]}]}

Reproduction Steps

console.log(
     JSON.stringify(
       FieldUtils.renderObject({
         myNestedArray: [
           [
             [123, 123],
             [456, 456],
           ],
         ],
       }),
     ),
   );

Possible Solution

No response

Additional Information/Context

No response

CDK CLI Version

2.84.0

Framework Version

No response

Node.js Version

18

OS

MacOS

Language

Typescript

Language Version

No response

Other information

No response