Update phpcs.xml

Co-authored-by: Copilot <[email protected]>
Signed-off-by: Ash Shaw <[email protected]>

Author: ashleyshaw

phpcs.xml

@@ -1,5 +1,5 @@
 <?xml version="1.0"?>
-<ruleset xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" name="{{theme_name}}" xsi:noNamespaceSchemaLocation="https://raw.githubusercontent.com/squizlabs/PHP_CodeSniffer/master/phpcs.xsd">
+<ruleset xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" name="{{{theme_name_xml_escaped}}}" xsi:noNamespaceSchemaLocation="https://raw.githubusercontent.com/squizlabs/PHP_CodeSniffer/master/phpcs.xsd">
 	<description>{{theme_name}} coding standards</description>
 
 	<!-- Check all PHP files in directory tree by default. -->