New SSH key for jenkins user.

* modules/openstack_project/manifests/init.pp(jenkins_ssh_key):
Generated new keys to replace the previous set.

Change-Id: I0d3181265ea0103babd4e7c02a5543936227cfdf
Reviewed-on: https://review.openstack.org/19143
Approved: James E. Blair <corvus@inaugust.com>
Reviewed-by: James E. Blair <corvus@inaugust.com>
Tested-by: James E. Blair <corvus@inaugust.com>