Added publish-openstack-python-tarball job
Added publish-openstack-python-tarball job

It will be used for publishing tarballs to
tarballs.opendev.org only for python projects.

It will be triggered in release pipeline.

It is needed by tripleo-operator-ansible.

Needed-By: https://review.opendev.org/c/openstack/tripleo-operator-ansible/+/791645

Signed-off-by: Chandan Kumar (raukadah) <37614c4f126be5146599b9d19fe2ba37ae0ea495@redhat.com>
Change-Id: Ifd84cbe9bca856547efc2939a744ef068c286d36

openstack-infra/project-config,openstack-infra/project-config