Map should be converted to object when used in workflow

[Niraj-Kamdar]

Describe the bug
Currently, when we convert the object to JSON to be validated by the workflow, it incorrectly converts the Map type to an object with no properties.

Please provide the steps to reproduce and if possible a minimal demo of the problem.
Try to run a test workflow for any wrapper method that returns map type.

Expected behavior
Convert the Map type to object while serializing to JSON