SODA Installation on Ubuntu 20.04 fails.

[anvithks]

Issue/Feature Description: When trying to install SODA on Ubuntu 20.04 it fails with errors thrown due to incorrect syntax in ansible scripts and Python2 support being deprecated in Ubuntu20.04

Why this issue to fixed / feature is needed(give scenarios or use cases): Ubuntu 20.04 is the latest LTS release of Ubuntu and will become the most common distribution of Ubuntu used in time. As was the case with Ubuntu 16.04, the support for Ubuntu 18.04 may end and this will cause issues later on.

How to reproduce, in case of a bug:

Other Notes / Environment Information: (Please give the env information, log link or any useful information for this issue)