[Checkins] [zopefoundation/Zope] 6cac0f: Bump waitress from 1.4.1 to 1.4.2

[dependabot[bot]]

  Branch: refs/heads/dependabot/pip/waitress-1.4.2
  Home:   https://github.com/zopefoundation/Zope
  Commit: 6cac0fcd0849e8ba00a9bfd73eb6f0c2a001f696
      https://github.com/zopefoundation/Zope/commit/6cac0fcd0849e8ba00a9bfd73eb6f0c2a001f696
  Author: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
  Date:   2020-01-06 (Mon, 06 Jan 2020)

  Changed paths:
    M constraints.txt
    M requirements-full.txt

  Log Message:
  -----------
  Bump waitress from 1.4.1 to 1.4.2

Bumps [waitress](https://github.com/Pylons/waitress) from 1.4.1 to 1.4.2.
- [Release notes](https://github.com/Pylons/waitress/releases)
- [Changelog](https://github.com/Pylons/waitress/blob/master/CHANGES.txt)
- [Commits](https://github.com/Pylons/waitress/compare/v1.4.1...v1.4.2)

Signed-off-by: dependabot[bot] <support at github.com>