fix(ovn): pin host names (#863)

diff --git a/Earthfile b/Earthfile
index 7dbaa88..b85b9ca 100644
--- a/Earthfile
+++ b/Earthfile
@@ -59,14 +59,18 @@
   BUILD ./images/horizon+image
   BUILD ./images/ironic+image
   BUILD ./images/keystone+image
+  BUILD ./images/libvirtd+image
   BUILD ./images/magnum+image
   BUILD ./images/manila+image
   BUILD ./images/neutron+image
   BUILD ./images/nova-ssh+image
   BUILD ./images/nova+image
   BUILD ./images/octavia+image
+  BUILD ./images/openvswitch+image
+  BUILD ./images/ovn+images
   BUILD ./images/placement+image
   BUILD ./images/senlin+image
+  BUILD ./images/tempest+image
 
 pin-images:
   FROM +build.venv.dev