PrefixAllGlobals: false negatives when checking group constant declarations

Bug Description

The sniff WordPress.NamingConventions.PrefixAllGlobals does not take into consideration that multiple constants can be declared using a single const keyword. When there is more than one constant declaration, the sniff will check only the name of the first constant, potentially leading to false negatives.

Minimal Code Snippet

The issue happens when running this command:

vendor/bin/phpcs -s --standard=WordPress --sniffs=WordPress.NamingConventions.PrefixAllGlobals test.php

... over a file containing this code:

<?php

// phpcs:set WordPress.NamingConventions.PrefixAllGlobals prefixes[] my_plugin

const MY_PLUGIN_CONSTANT = 'value', ANOTHER_CONSTANT = 'another_value';

I would expect to see a WordPress.NamingConventions.PrefixAllGlobals.NonPrefixedConstantFound error for the ANOTHER_CONSTANT constant, but no error is reported.

Error Code

WordPress.NamingConventions.PrefixAllGlobals.NonPrefixedConstantFound

Environment

Additional Context (optional)

I believe the problem is related to the code below when the sniff gets the name of the constant without considering that there might be more than one constant declaration after T_CONST:

https://github.com/WordPress/WordPress-Coding-Standards/blob/4d0160f32f8537f3cdf2e301433cb15641083963/WordPress/Sniffs/NamingConventions/PrefixAllGlobalsSniff.php#L714-L733

Tested Against develop Branch?

• I have verified the issue still exists in the develop branch of WordPressCS.

Start in WordPress/Sniffs/NamingConventions/PrefixAllGlobalsSniff.php around lines 714-733, where the issue identifies constant names as the likely source. Run the provided vendor/bin/phpcs command against the minimal PHP snippet and verify that the non-prefixed ANOTHER_CONSTANT declaration produces WordPress.NamingConventions.PrefixAllGlobals.NonPrefixedConstantFound.