The py2.7 jobs need to specify xenial
The py3.6 jobs need to specify bionic
The focal zuul nodes only have python 3.8 installed in them

Zuul targets that invoke a generic python3 interpreter such
as pep8 is not specified.

Also ignore H216 since we still use py2.7.

The copyright date was updated in order to trigger
the zuul jobs, as a no-delta type of change.

Partial-Bug: 1928978

Signed-off-by: Charles Short <charles.short@windriver.com>
Change-Id: I81fd790dfc8a665a4e4e0ff59a013af7921b6e06
Signed-off-by: Charles Short <charles.short@windriver.com>