fix: gather facts always

Closes: https://github.com/vexxhost/atmosphere/issues/186
diff --git a/playbooks/openstack.yml b/playbooks/openstack.yml
index ed8fb38..005beb0 100644
--- a/playbooks/openstack.yml
+++ b/playbooks/openstack.yml
@@ -13,7 +13,6 @@
 # under the License.
 
 - hosts: controllers[0]
-  gather_facts: false
   become: true
   roles:
     - role: cert_manager