Configure Rocky Linux 9 CRB YUM repository

This is necessary to install packages purely from Pulp.

Author: priteau

etc/kayobe/dnf.yml

@@ -149,6 +149,12 @@ dnf_custom_repos_rocky_9:
     file: rocky
     gpgkey: "{{ rocky_9_gpg_key }}"
     gpgcheck: yes
+  crb:
+    baseurl: "{{ stackhpc_repo_rocky_9_crb_url }}"
+    description: "Rocky Linux $releasever - CRB"
+    file: rocky
+    gpgkey: "{{ rocky_9_gpg_key }}"
+    gpgcheck: yes
   extras:
     baseurl: "{{ stackhpc_repo_rocky_9_extras_url }}"
     description: "Rocky Linux $releasever - Extras"