[Checkins] [zopefoundation/zope.security] bc3bfc: Use MacPython 3.6.2.

[Jason Madden]

  Branch: refs/heads/use-3.6.2
  Home:   https://github.com/zopefoundation/zope.security
  Commit: bc3bfce7b0a7d183c601d8c5f902dfb0cd85bdc4
      https://github.com/zopefoundation/zope.security/commit/bc3bfce7b0a7d183c601d8c5f902dfb0cd85bdc4
  Author: Jason Madden <jamadden at gmail.com>
  Date:   2020-01-20 (Mon, 20 Jan 2020)

  Changed paths:
    M .travis.yml

  Log Message:
  -----------
  Use MacPython 3.6.2.

Fixes issue uploading coverage.