fix(tox): fix basepython for pypi-publish

3 jobs for topic/default/pypi-publish_fix in 2 minutes and 58 seconds (queued for 27 seconds)
Status Job ID Name Coverage
  Lint
passed check-manifest #90783

00:00:55

passed flake8 #90784

00:00:22

 
  Test
passed py27 #90785

00:01:39