Support for latest 6.x version of justinrainbow/json-schema package

Overview

The current Experience Builder does not support the latest 6.x version of the justinrainbow/json-schema package.
This limitation arises because the Experience Builder's composer.json restricts the package version at https://git.drupalcode.org/project/experience_builder/-/blob/0.x/composer.json?ref_type=heads#L9

Our project uses the latest version of composer/composer which requires the justinrainbow/json-schema package version 6.x. Due to this version mismatch, we are currently unable to utilize the Experience Builder functionalities in our project.

Proposed resolution

Update the Experience Builder to support the 6.x version of the justinrainbow/json-schema package. This upgrade will enable compatibility with the latest composer/composer