add useful debug info for change and builds

The zuul change needs to built at the right
time in upgrades.  If the change is rocky
and it's a standalone-upgrade job.  The change
needs to be built on the appropriate branch
at the right time.

Change-Id: If97dd12ebe994cfed859309653d6fbd2987d2a92

roles/build-test-packages/tasks/dlrn-build.yml

@@ -3,6 +3,10 @@
   set_fact:
     artg_release: "{{ artg_change.branch | replace('stable/', '') }}"
 
+- name: print out the release name
+  debug:
+    var: artg_release
+
 - name: Set DLRN distro (legacy distgit branch naming)
   set_fact:
     artg_distro: "rpm-{{ artg_release }}"

roles/build-test-packages/tasks/main.yml

@@ -211,6 +211,10 @@
     artg_change_list: "{{ artg_change_list|union(zuul_change_list|default([])) }}"
     cacheable: true
 
+- name: Print out the change list
+  debug:
+    var: artg_change_list
+
 - name: Clone and build the specific DLRN projects
   include: dlrn-build.yml artg_change={{ item }}
   with_items: '{{ artg_change_list|default([]) }}'