Update role to take repo list variable

ansible/roles/install_packages/tasks/main.yml

@@ -8,17 +8,7 @@
     owner: root
     group: root
     mode: 0644
-  loop:
-    - ceph.repo
-    - dell-system-update.repo
-    - elastic.repo
-    - nux-dextop.repo
-    - TurboVNC.repo
-
-- name: Install openstack-rocky repo
-  ansible.builtin.yum:
-    name: centos-release-openstack-rocky
-    state: present
+  loop: "{{ yum_repo_files }}"
 
 - name: Install system packages
   ansible.builtin.yum: