Update phpcs.xml.dist

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: swissspidy

phpcs.xml.dist

@@ -63,5 +63,5 @@
 		<exclude-pattern>*/src/Package_Command\.php$</exclude-pattern>
 	</rule>
 
-	<exclude-pattern>/tests/phpstan/scan-files</exclude-pattern>
+	<exclude-pattern>*/tests/phpstan/scan-files\.php$</exclude-pattern>
 </ruleset>