test: Update test spec to 2.0.0

Author: Krinkle

test/suites/CSSJanusTest.php

@@ -59,7 +59,7 @@ public function testTransform($input, $args, $output, $name) {
 	protected static function getSpec() {
 		static $json;
 		if ($json == null) {
-			$version = '1.3.2';
+			$version = '2.0.0';
 			$dir = dirname(__DIR__);
 			$file = "$dir/data-v$version.json";
 			if (!is_readable($file)) {