Only install epel-release if not using custom repos

Author: jovial

etc/kayobe/ansible/octavia-amphora-image-build.yml

@@ -8,7 +8,9 @@
       package:
         name: epel-release
       become: true
-      when: ansible_facts.os_family == "RedHat"
+      when: 
+        - ansible_facts.os_family == "RedHat"
+        - dnf_custom_repos | falsy
 
     - name: Ensure packages are installed
       become: true