tools: use Object.hasOwn() in alljson.mjs

Replace hasOwnProperty() with Object.hasOwn().

PR-URL: #41306
Reviewed-By: Antoine du Hamel <[email protected]>
Reviewed-By: Tobias Nießen <[email protected]>
Reviewed-By: Mohammed Keyvanzadeh <[email protected]>
Reviewed-By: James M Snell <[email protected]>

Author: Trott

tools/doc/alljson.mjs

@@ -40,7 +40,7 @@ for (const link of toc.match(/<a.*?>/g)) {
   );
 
   for (const property in data) {
-    if (results.hasOwnProperty(property)) {
+    if (Object.hasOwn(results, property)) {
       data[property].forEach((mod) => {
         mod.source = data.source;
       });