use new name of cleanup job

Change-Id: I5c3924e2ce2401c136a8224e9ba611d438758d2b
diff --git a/lab-pipeline.groovy b/lab-pipeline.groovy
index bd9f890..9497c2f 100644
--- a/lab-pipeline.groovy
+++ b/lab-pipeline.groovy
@@ -407,7 +407,7 @@
 
             if (HEAT_STACK_DELETE == 'true' && STACK_TYPE == 'heat') {
                 stage('Trigger cleanup job') {
-                    build job: 'deploy_heat_cleanup', parameters: [[$class: 'StringParameterValue', name: 'HEAT_STACK_NAME', value: HEAT_STACK_NAME]]
+                    build job: 'deploy-heat-cleanup', parameters: [[$class: 'StringParameterValue', name: 'HEAT_STACK_NAME', value: HEAT_STACK_NAME]]
                 }
             }
         }