Update git submodules

* Update openstack-helm from branch 'master'
  to 725fb3882a8c99ca00e8270e552739ec6ae0e733
  - Fix chart-testing role

    It must use bash to be able to utilize the
    source function when activating the virtualenv

    Change-Id: Idf07040b8756361aa84ab31c29a73aba47032af7
    Signed-off-by: Vladimir Kozhukalov <kozhukalov@gmail.com>

diff --git a/openstack-helm b/openstack-helm
index 4c467cb5e9d0031544b1736d5ee03f63e78cae22..725fb3882a8c99ca00e8270e552739ec6ae0e733 160000 (submodule)
--- a/openstack-helm
+++ b/openstack-helm
@@ -1 +1 @@
-Subproject commit 4c467cb5e9d0031544b1736d5ee03f63e78cae22
+Subproject commit 725fb3882a8c99ca00e8270e552739ec6ae0e733