Interactivity API: Include preact/debug when SCRIPT_DEBUG is enabled

[darerodz]

This ticket tracks the backporting of PHP files for the following Gutenberg changes:

​Interactivity API: Include preact/debug when SCRIPT_DEBUG is enabled

It makes WordPress enqueue a different Interactivity API runtime version depending on the value of the SCRIPT_DEBUG constant.

Syncs the changes from the following PR:

• ​https://github.com/WordPress/gutenberg/pull/60514

Enqueues a different Interactivity API runtime version with preact/debug when SCRIPT_DEBUG is enabled.

Trac ticket: https://core.trac.wordpress.org/ticket/61171

The @wordpress/interactivity version has not been updated yet in ​WordPress::trunk so it is expected to see errors in the tests like the following one:

Module not found: Error: Can't resolve '/home/runner/work/wordpress-develop/wordpress-develop/node_modules/@wordpress/interactivity/build-module/debug' in '/home/runner/work/wordpress-develop/wordpress-develop'

I tried this patch, and the changes work as expected:

package.json

@@ -112 +112 @@
                 "@wordpress/html-entities": "3.51.1",
                 "@wordpress/i18n": "4.51.1",
                 "@wordpress/icons": "9.42.4",
-                "@wordpress/interactivity": "5.0.5",
+                "@wordpress/interactivity": "5.5.0",
                 "@wordpress/interactivity-router": "1.1.5",
                 "@wordpress/interface": "5.28.6",
                 "@wordpress/is-shallow-equal": "4.51.1",

[gziolo]

In 58195:

Interactivity API: Include preact/debug when SCRIPT_DEBUG is enabled

Syncs the changes from Gutenberg: ​https://github.com/WordPress/gutenberg/pull/60514. Enqueues a different Interactivity API runtime version with preact/debug when SCRIPT_DEBUG is enabled.

Props darerodz, jonsurrell, gziolo.
Fixes #61171.

Committed with https://core.trac.wordpress.org/changeset/58195.