[Checkins] [zopefoundation/zope.proxy] cebf19: Wait with 3.9 MacOS wheels until its final release

[Michael Howitz]

  Branch: refs/heads/master
  Home:   https://github.com/zopefoundation/zope.proxy
  Commit: cebf19969e2ed2334334d8794c980c0d11b26d72
      https://github.com/zopefoundation/zope.proxy/commit/cebf19969e2ed2334334d8794c980c0d11b26d72
  Author: Michael Howitz <mh at gocept.com>
  Date:   2020-03-13 (Fri, 13 Mar 2020)

  Changed paths:
    M .travis.yml

  Log Message:
  -----------
  Wait with 3.9 MacOS wheels until its final release