releng: Schedule a cron job to retrieve retired packages nightly

Signed-off-by: Lenka Segura <lsegura@redhat.com>

roles/distgit/files/retired-packages.cron

@@ -0,0 +1 @@
+30 4 * * * root git clone https://pagure.io/releng.git && cd releng/scripts && bash get_retired_packages.sh

roles/distgit/tasks/main.yml

@@ -218,6 +218,12 @@
   tags:
   - distgit
 
+- name: Schedule the script to get retired packages
+  copy: src="retired-packages.cron" dest="/etc/cron.d/retired-packages.cron" mode=755 owner=root group=root
+  when: inventory_hostname.startswith('pkgs01.stg.iad2')
+  tags:
+  - distgit
+
 - name: install the two scripts needed for mass-branching
   copy: src={{item}} dest=/usr/local/bin/{{item}} owner=root group=root mode=0755
   with_items: