taskotron-trigger: blacklist thunderbird and kernel on abicheck

roles/taskotron/taskotron-trigger/templates/trigger.cfg.j2

@@ -28,7 +28,7 @@ namespace = rpms-checks
 [abicheck]
 critpath_filepath = {{ trigger_critpath_file }}
 {% if deployment_type in ['dev', 'stg'] %}
-critpath_exclude = firefox,kdelibs,kdepim
+critpath_exclude = firefox,thunderbird,kernel,kdelibs,kdepim
 {% else %}
 critpath_exclude =
 {% endif %}