Meta: update metadata for ES2025

Author: ljharb

spec.html

@@ -193,8 +193,9 @@
 <pre class="metadata">
   title: ECMAScript<sup>&reg;</sup> 2025 Language&nbsp;Specification
   shortname: ECMA-262
-  status: draft
-  location: https://tc39.es/ecma262/
+  status: standard
+  date: 2025-03-31
+  location: https://tc39.es/ecma262/2025/
   markEffects: true
 </pre>
 <p><img src="img/ecma-logo.svg" id="ecma-logo" alt="Ecma International logo"></p>