mirror jobs: copy acme.sh output

We have seen failures issuing keys, but can't see the output of the
letsencrypt wrapper without capturing this logfile.  Add it.

Also, when we updated the mirror to "mirror01.openafs." (because we
have WIP for non-openafs kafs mirrors too) we didn't update the
host-vars match for the apache logs either.  Fix this.

Change-Id: I810a02d309f473e8c4aa0ce1612088aba7868c33

.zuul.yaml

@@ -876,6 +876,11 @@
       run_playbooks:
         - playbooks/service-letsencrypt.yaml
         - playbooks/service-mirror.yaml
+    host-vars:
+      mirror01.openafs.provider.opendev.org:
+        host_copy_output:
+          '/var/log/apache2/': logs
+          '/var/log/acme.sh': logs
     files:
       - playbooks/bridge.yaml
       - roles/
@@ -887,11 +892,6 @@
       - playbooks/zuul/templates/group_vars/mirror_opendev.yaml.j2
       - testinfra/test_mirror.py
 
-    host-vars:
-      mirror.region.provider.opendev.org:
-        host_copy_output:
-          '/var/log/apache2/': logs
-
 - job:
     name: system-config-run-mirror-update
     parent: system-config-run