upload error log as artifact on gitlab

Author: eilmiv

gitlab/hermes-ci.yml

@@ -78,7 +78,9 @@
   tags:
     - docker
   artifacts:
-    paths: [".hermes/"]
+    paths: [".hermes/", "hermes.log"]
+    when: always
+    expire_in: 1 year
 
 # hermes metadata preparation - this job creates a MR that will trigger deposition when merged.
 .hermes_curate: