Fix author information

I have checked the author of other projects. Most of them are just
'OpenStack'. And OpenStack QA is not suitable for the author because
many development members contribute to Tempest. And author-email is not
proper email address recently. It is deprecated now.

Change-Id: I0f7405d107bf40d4781acb0e4b4a5db20d7606e4
diff --git a/setup.cfg b/setup.cfg
index 79f538f..a701572 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -4,8 +4,8 @@
 summary = OpenStack Integration Testing
 description-file =
     README.rst
-author = OpenStack QA
-author-email = openstack-qa@lists.openstack.org
+author = OpenStack
+author-email = openstack-dev@lists.openstack.org
 home-page = http://www.openstack.org/
 classifier =
     Intended Audience :: Information Technology