Check for cifmw_repo_setup_component_name definition

DLRN promote jobs in integration lines are failing
this check as cifmw_repo_setup_component_name
is not defined. Add a check for the var definition
before checking length.

roles/dlrn_report/tasks/dlrn_report_results.yml

@@ -30,7 +30,7 @@
       --server-principal {{ cifmw_dlrn_report_dlrnapi_host_principal }} --auth-method kerberosAuth
       {% endif -%}
       report-result
-      {% if cifmw_repo_setup_component_name | length > 0%}
+      {% if (cifmw_repo_setup_component_name is defined) and (cifmw_repo_setup_component_name | length > 0) %}
       {% if (cifmw_repo_setup_extended_hash is defined) and (cifmw_repo_setup_extended_hash | length > 0) -%}
       --extended-hash {{ cifmw_repo_setup_extended_hash }}
       {% endif -%}