Promote python-XStatic-mdi-1.6.50.2-1.el8 to ussuri-testing
Promote python-XStatic-mdi-1.6.50.2-1.el8 to ussuri-testing

It's needed for horizon [1]

[1] https://review.rdoproject.org/r/#/c/26099/

Change-Id: I73c9eadded3cda7da06acc94900ba2c78d233789

redhat-openstack/rdoinfo