Prefer ipv4

[paulrutter]

Use ipv4, since it will use v6 in node17.

[paulrutter]

This issue can arise when creating heapdumps and CPU profiles via the JS API, where localhost is resolved with IPv6 (::1) instead of 127.0.0.1, thus failing.

Error occurred while creating CPU profile Error: connect ECONNREFUSED ::1:5860
    at TCPConnectWrap.afterConnect [as oncomplete] (node:net:1494:16) {
  errno: -4078,
  code: 'ECONNREFUSED',
  syscall: 'connect',
  address: '::1',
  port: 5860
}