Replace openstack.org git:// URLs with https://

This is a mechanically generated change to replace openstack.org
git:// URLs with https:// equivalents.

This is in aid of a planned future move of the git hosting
infrastructure to a self-hosted instance of gitea (https://gitea.io),
which does not support the git wire protocol at this stage.

This update should result in no functional change.

For more information see the thread at

 http://lists.openstack.org/pipermail/openstack-discuss/2019-March/003825.html

Change-Id: I88f279ebe4aef832073cfe747e65037f1dcf0c81

integration-test/test.sh

@@ -9,7 +9,7 @@
 set -x
 set -e
 
-REPO_ROOT=${REPO_ROOT:-git://git.openstack.org}
+REPO_ROOT=${REPO_ROOT:-https://git.openstack.org}
 HACKING="$(pwd)"
 
 if [[ $# -lt 2 ]] ; then