tox: merged hdk environment from default branch

Forgot to publish that before bumping the stable branch

--HG--
branch : stable
7 jobs for branch/stable in 21 minutes and 58 seconds (queued for 2 seconds)
Status Name Job ID Coverage
  Lint
passed flake8 #166055

00:00:15

 
  Test Heptapod
passed docker-inside #166056

00:18:29

passed docker-native-inside #166059

00:18:32

passed docker-native-remote-0 #166060

00:18:07

passed docker-native-remote-1 #166061

00:21:42

passed docker-remote-0 #166057

00:18:39

passed docker-remote-1 #166058

00:21:33