When adding a Shortcode to a core/code block, the Shortcode is printed as text instead of being evaluated (this is useful e.g. for documentation pages of a plugin's Shortcodes).

When then activating "Syntax-highlighting Code Block (with Server-side Rendering)" version 1.3.1 (tested on WP 6.1.1 and trunk), the Shortcode is however evaluated.

To reproduce this:

1. Add a small plugin that adds a Shortcode:

<?php
/*
Plugin Name: Shortcode Test
Description: Shortcode Test
Version: 1.0
*/

add_shortcode( 'test', 'shortcode_test' );
function shortcode_test( $atts, $content ) {
    return 'Just a test';
}

2. Add a "Code" block to a post or page with the Shortcode [test] as the content.
3. Compare the page output with "Syntax-highlighting Code Block (with Server-side Rendering)" deactivated and activated.