Add cis tag

Author: jovial

etc/kayobe/ansible/cis.yml

@@ -3,6 +3,8 @@
 - name: Security hardening
   hosts: cis-hardening
   become: true
+  tags:
+    - cis
   tasks:
     # TODO: Remove this when Red Hat FIPS policy has been updated to allow ed25519 keys.
     # https://gitlab.com/gitlab-org/gitlab/-/issues/367429#note_1840422075