[Checkins] [zopefoundation/zodbpickle] a81557: Use Python 3.8 final on Travis CI

[Marius Gedminas]

  Branch: refs/heads/master
  Home:   https://github.com/zopefoundation/zodbpickle
  Commit: a8155718c6fb6f235e06437db3e454a5d3f7b695
      https://github.com/zopefoundation/zodbpickle/commit/a8155718c6fb6f235e06437db3e454a5d3f7b695
  Author: Marius Gedminas <marius at gedmin.as>
  Date:   2019-10-23 (Wed, 23 Oct 2019)

  Changed paths:
    M .travis.yml

  Log Message:
  -----------
  Use Python 3.8 final on Travis CI