Additional IP addresses for Linux and Windows builds

We've extended the range of IP addresses used by our Linux and Windows build machines.

The following IP addresses have been added:

  • 104.198.131.58
  • 34.66.178.120
  • 34.68.144.114
  • 35.193.14.140

The best way to keep your safelist up-to-date with our IP addresses is to use the current A records for the NAT hostname as explained at: https://docs.travis-ci.com/user/ip-addresses/