test: defer invocation checks

Do not immediately check the `tcpserver` hook invocations when it
closes. Do it in the next iteration of the event loop.

PR-URL: #42340
Refs: #42340 (comment)
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Juan José Arboleda <soyjuanarbol@gmail.com>
Reviewed-By: Yagiz Nizipli <yagiz@nizipli.com>
Reviewed-By: Darshan Sen <raisinten@gmail.com>
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>

test/async-hooks/test-tcpwrap.js

@@ -128,9 +128,9 @@ function onconnection(c) {
 }
 
 function onserverClosed() {
-  checkInvocations(tcpserver, { init: 1, before: 1, after: 1, destroy: 1 },
-                   'tcpserver when server is closed');
   setImmediate(() => {
+    checkInvocations(tcpserver, { init: 1, before: 1, after: 1, destroy: 1 },
+                     'tcpserver when server is closed');
     checkInvocations(tcp1, { init: 1, before: 2, after: 2, destroy: 1 },
                      'tcp1 after server is closed');
   });