Fix deprecated PHPCS syntax in `phpcs.xml`
>>> [!note] Migrated issue
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Reported by: [tim.plunkett](https://www.drupal.org/user/241634)
Related to !1094
>>>
<h3 id="overview">Overview</h3>
<p>On every PHPCS run, I get this message:</p>
<pre>DEPRECATED: Passing an array of values to a property using a comma-separated string<br>was deprecated in PHP_CodeSniffer 3.3.0. Support will be removed in PHPCS 4.0.0.<br>The deprecated syntax was used for property "include"<br>for sniff "SlevomatCodingStandard.Namespaces.FullyQualifiedGlobalFunctions".<br>Pass array values via <element [key="..." ]value="..."> nodes instead.</pre><h3 id="proposed-resolution">Proposed resolution</h3>
<p>Splitting the long list of PHP functions we want globally addressed (e.g. <code>\array_map()</code>) addresses the deprecations.<br>
It will also make it easier to read future additions to the list</p>
<h3 id="ui-changes">User interface changes</h3>
<p>N/A</p>
issue