Upgrade global-jjb

Upgrading global-jjb to pick up a bug fix for
create_jenkins_clouds_openstack_yaml.

Release notes can be found here:
https://docs.releng.linuxfoundation.org/projects/global-jjb/en/latest/release-notes.html#v0-65-1-2

Signed-off-by: Vanessa Rene Valderrama <vvalderrama@linuxfoundation.org>
Change-Id: I2ae70b7c8f6619abc043503760a28476dfbd8966

diff --git a/global-jjb b/global-jjb
index 7f064ed..28c0687 160000 (submodule)
--- a/global-jjb
+++ b/global-jjb
@@ -1 +1 @@
-Subproject commit 7f064ed20dd2fdf8ed25976b840afa250023e657
+Subproject commit 28c06872f86a6d432e89ab4923bb807145e3aefc