Updated openstack/openstack

Project: openstack/debtcollector  42386039bacb567ecd087552ba75a774ebc7e3dd

Switch badges from 'pypip.in' to 'shields.io'

The badge hosting at 'pypip.in' has been broken for a while
now, it was supposed to be fixed in the following PR(s):

- badges/pypipins#39
- badges/pypipins#38
- badges/pypipins#37

That does not appear to have actually happened and/or is not
getting addressed, so switch to a more reliable badge hosting
site that provides the same badge information.

Change-Id: I8c7d12c20ee9120f618f64b0a0354628c4f31fc5