test: fix assertion argument order in test-esm-namespace

PR-URL: #28474
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>

test/es-module/test-esm-namespace.mjs

@@ -11,4 +11,4 @@ const keys = Object.entries(
   .concat('default')
   .sort();
 
-assert.deepStrictEqual(Object.keys(fs).sort(), keys);
+assert.deepStrictEqual(keys, Object.keys(fs).sort());