test: rename handlewrap.hasref tests

`HandleWrap.isRefed()` was renamed to `hasRef()`. However, the filename
of related TCs has not been reflected.

Refs: https://github.com/nodejs/node/commit/f31a5ec34a

PR-URL: https://github.com/nodejs/node/pull/42754
Reviewed-By: Darshan Sen <raisinten@gmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: Akhil Marsonya <akhil.marsonya27@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Mestery <mestery@protonmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

test/parallel/test-handle-wrap-hasref.js

@@ -133,4 +133,4 @@ const { kStateSymbol } = require('internal/dgram');
     (type) => type === 'Immediate').length, 1);
 }
 
-// See also test/pseudo-tty/test-handle-wrap-isrefed-tty.js
+// See also test/pseudo-tty/test-handle-wrap-hasref-tty.js

test/pseudo-tty/test-handle-wrap-hasref-tty.js

@@ -1,7 +1,7 @@
 // Flags: --expose-internals --no-warnings
 'use strict';
 
-// See also test/parallel/test-handle-wrap-isrefed.js
+// See also test/parallel/test-handle-wrap-hasref.js
 
 const common = require('../common');
 const strictEqual = require('assert').strictEqual;