print images registries as part of OSL prod UMB message job

Print the images registries in the same format that is expected as part of the promotion email to make it easier.

job-dsls/src/main/resources/job-scripts/prod_osl_trigger_umb_message.jenkinsfile

@@ -109,6 +109,7 @@ pipeline {
                 script {
                     def messageBody = getMessageBody(milestone, projectsAndVersions, images)
                     triggerUMBMessageJob(messageBody, milestone)
+                    printImagesRegistries(images)
                 }
             }
         }
@@ -150,6 +151,22 @@ def getMessageBody(milestone, projectsAndVersions, images) {
 }"""
 }
 
+def printImagesRegistries(images) {
+    def imagesRegistries = """\
+        data-index-ephemeral: ${images["data-index-ephemeral"].imageTag}
+        data-index-postgresql: ${images["data-index-postgresql"].imageTag}
+        jobs-service-ephemeral: ${images["jobs-service-ephemeral"].imageTag}
+        jobs-service-postgresql: ${images["jobs-service-postgresql"].imageTag}
+        swf-builder: ${images["swf-builder"].imageTag}
+        swf-devmode: ${images["swf-devmode"].imageTag}
+        management-console: ${images["management-console"].imageTag}
+        operator: ${images["operator"].imageTag}
+        operator-bundle: ${images["operator-bundle"].imageTag}
+        kn-workflow-cli-artifacts: ${images["kn-workflow-cli-artifacts"].imageTag}
+        """.stripIndent()
+    println "[Images Registries]\n${imagesRegistries}"
+}
+
 def triggerUMBMessageJob(messageBody, milestone) {
     def umbVersion = milestone.split("\\.")[0] + milestone.split("\\.")[1]
     def topic = "VirtualTopic.qe.ci.ba.openshift-serverless-logic.${umbVersion}.cr.trigger"