[xoreos-git] [xoreos/xoreos] 6d1869: APPVEYOR: Use a more up-to-date vcpkg

[Sven Hesse]

  Branch: refs/heads/try_fix_appveyor_vcpkg
  Home:   https://github.com/xoreos/xoreos
  Commit: 6d186960e36a17ce040035dd6b0da2ae231b4079
      https://github.com/xoreos/xoreos/commit/6d186960e36a17ce040035dd6b0da2ae231b4079
  Author: Sven Hesse <drmccoy at drmccoy.de>
  Date:   2019-09-22 (Sun, 22 Sep 2019)

  Changed paths:
    M .appveyor.yml

  Log Message:
  -----------
  APPVEYOR: Use a more up-to-date vcpkg

Because the old version seem to have been broken.