test: deflake test-tls-close-notify.js

This test occasionally fails on macOS with the following error

```
events.js:187
      throw er; // Unhandled 'error' event
      ^

Error: read ECONNRESET
    at TLSWrap.onStreamRead (internal/stream_base_commons.js:201:27)
Emitted 'error' event on TLSSocket instance at:
    at emitErrorNT (internal/streams/destroy.js:84:8)
    at processTicksAndRejections (internal/process/task_queues.js:80:21) {
  errno: -54,
  code: 'ECONNRESET',
  syscall: 'read'
}
```

Fix it by making the client send the close_notify alert instead of the
server.

PR-URL: #30202
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: Colin Ihrig <[email protected]>

test/parallel/test-tls-close-notify.js

@@ -35,19 +35,18 @@ const server = tls.createServer({
   key: fixtures.readKey('agent1-key.pem'),
   cert: fixtures.readKey('agent1-cert.pem')
 }, function(c) {
-  // Send close-notify without shutting down TCP socket
-  const req = new ShutdownWrap();
-  req.oncomplete = common.mustCall(() => {});
-  req.handle = c._handle;
-  c._handle.shutdown(req);
+  // Ensure that we receive 'end' event anyway.
+  c.on('end', common.mustCall(function() {
+    server.close();
+  }));
 }).listen(0, common.mustCall(function() {
   const c = tls.connect(this.address().port, {
     rejectUnauthorized: false
   }, common.mustCall(function() {
-    // Ensure that we receive 'end' event anyway
-    c.on('end', common.mustCall(function() {
-      c.destroy();
-      server.close();
-    }));
+    // Send close-notify without shutting down TCP socket.
+    const req = new ShutdownWrap();
+    req.oncomplete = common.mustCall(() => {});
+    req.handle = c._handle;
+    c._handle.shutdown(req);
   }));
 }));