Fix Bug/issue #68368 - SCRIPT_DEBUG not working properly in gutenberg plugin

[ronakganatra9]

What?

Before it was loading the minified version of javascript even the script_debug is turned on. ( It was only issue in gutenberg plugin )

Why?

After this PR merge, it will load minified version javascript when script debug is turned off and it will load non-minified version when script debug is turned on.

How?

So, Added changes as per the reference from WordPress develop
https://github.com/WordPress/wordpress-develop/blob/trunk/tools/webpack/script-modules.js
https://github.com/WordPress/wordpress-develop/blob/trunk/src/wp-includes/script-modules.php

Testing Instructions

1. Merge PR
2. Go to the wp-config.php file and enable script to debug to true define( 'SCRIPT_DEBUG', true );
3. Check in console.

Screenshots or screencast

Before	After

[github-actions]

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[github-actions]

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