Merge pull request #3141 from cloudfoundry/fix-set-pipeline

Adds missing pr variable to set-pipeline job

ci/autoscaler/pipeline.yml

@@ -188,6 +188,7 @@ jobs:
       acceptance_deployment_name_logcache_metron: ((acceptance_deployment_name_logcache_metron))
       acceptance_deployment_name_logcache_syslog: ((acceptance_deployment_name_logcache_syslog))
       acceptance_deployment_name_logcache_syslog_cf: ((acceptance_deployment_name_logcache_syslog_cf))
+      pr_number: ((pr_number))
 
 - name: unit-tests
   public: true