Run puppet on old nb0[1-3] in nodepool playbook

We still need to run puppet here until they're replaced, but
we're triggering service-nodepool on project-config nodepool
changes. So run the puppet.

Change-Id: Ib0bdaeee98e19921b8c4117c12f8a0c05e64af57

playbooks/remote_puppet_else.yaml

@@ -1,4 +1,4 @@
-- hosts: 'puppet:!review:!afs:!afsdb:!puppetmaster*:!disabled'
+- hosts: 'puppet:!review:!afs:!afsdb:!puppetmaster*:!nb*:!disabled'
   name: "Puppet-else: run puppet on all other servers"
   strategy: free
   roles:

playbooks/service-nodepool.yaml

@@ -15,6 +15,13 @@
     - configure-openstacksdk
     - nodepool-builder
 
+- hosts: 'nb01.openstack.org:nb02.openstack.org:nb03.openstack.org:!disabled'
+  name: "run puppet on all older servers"
+  strategy: free
+  roles:
+    - puppet-install
+    - disable-puppet-agent
+    - puppet
 
 # TODO(ianw) 2020-03-03 : watch this space...
 #- hosts: nodepool-launcher_opendev:!disabled