Suppress an unwarranted Scrutinizer warning

The method in question doesn't exist before NC28 but we already check for
that so there's no point to nag about it.

lib/Utility/HtmlUtil.php

@@ -90,7 +90,7 @@ public static function addWebpackScript(string $name) {
 		$manifest = self::getManifest();
 		$hashedName = \substr($manifest["$name.js"], 0, -3); // the extension is cropped from the name in $manifest
 		if (\method_exists('\OCP\Util', 'addInitScript')) {
-			\OCP\Util::addInitScript('music', '../dist/' . $hashedName);
+			\OCP\Util::/** @scrutinizer ignore-call */addInitScript('music', '../dist/' . $hashedName);
 		} else {
 			\OCP\Util::addScript('music', '../dist/' . $hashedName);
 		}