ICU-20435 Update Cygwin to 3.x to fix CI builds.
authorJeff Genovy <29107334+jefgen@users.noreply.github.com>
Mon, 23 Mar 2020 19:31:15 +0000 (12:31 -0700)
committerJeff Genovy <29107334+jefgen@users.noreply.github.com>
Wed, 25 Mar 2020 17:46:51 +0000 (10:46 -0700)
commita8b07c98d0f5717ba10a10a5fb008ba66c58aa97
tree3f461ba830996c4da480e33ac2124db2408de0df
parentb186f2cff6ac5b9648c1e46b446f6d2beb46b40c
ICU-20435 Update Cygwin to 3.x to fix CI builds.

Cygwin doesn't fully build with a parallel make, so split it out
in order to speed things up somewhat.
.appveyor.yml