Specify backports.lzma package version

Feature description

For now dependency now as backports.lzma package is installed in continer by system package python-backports-lzma. Unfortunately this method leads to installation of very old (from 2014) version of this package. The other way is to installed it via pip but this requires system packages (gcc, python-devel, xz-devel) to be installed on system.

Proposal

Add one more step to container which will install necessary system packages (via yum) then install backports.lzma (via pip) and finally remove previously installed system packages.