test: replace common.PORT with 0 in https renegotiation test

Repeated use of common.PORT was resulting in sporadic failures on some operating systems. PR-URL: #25599 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Richard Lau <riclau@uk.ibm.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com>

Author: Trott

test/pummel/test-https-ci-reneg-attack.js

@@ -65,8 +65,9 @@ function test(next) {
  res.end('ok');
  });
 
- server.listen(common.PORT, function() {
- const args = (`s_client -connect 127.0.0.1:${common.PORT}`).split(' ');
+ server.listen(0, function() {
+ const cmd = `s_client -connect 127.0.0.1:${server.address().port}`;
+ const args = cmd.split(' ');
  const child = spawn(common.opensslCli, args);
 
  child.stdout.resume();