Add configured apt component to the unattended-upgrades whitelist

Resolves: #8792

puppet/modules/site_apt/files/Debian/51unattended-upgrades-leap

-// this file is managed by puppet !
-
-Unattended-Upgrade::Allowed-Origins {
-  "leap.se:stable";
-}
-

puppet/modules/site_apt/manifests/unattended_upgrades.pp

@@ -11,8 +11,7 @@ class site_apt::unattended_upgrades {
 
   # configure LEAP upgrades
   apt::apt_conf { '51unattended-upgrades-leap':
-    source      => [
-      "puppet:///modules/site_apt/${::lsbdistid}/51unattended-upgrades-leap"],
+    content     => template('site_apt/51unattended-upgrades-leap'),
     require     => Package['unattended-upgrades'],
     refresh_apt => false,
   }

puppet/modules/site_apt/templates/51unattended-upgrades-leap

+// this file is managed by puppet !
+
+Unattended-Upgrade::Origins-Pattern {
+  "site=deb.leap.se,component=<%= @apt_platform_component %>";
+}