benchmark : changed fstat to fstatSync

PR-URL: #36206
Fixes: #36199
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

benchmark/fs/bench-statSync.js

@@ -21,6 +21,6 @@ function main({ n, statSyncType }) {
   }
   bench.end(n);
 
-  if (statSyncType === 'fstat')
+  if (statSyncType === 'fstatSync')
     fs.closeSync(arg);
 }