Update to groovy-cps release 1.23

Author: abayer

pom.xml

@@ -68,7 +68,7 @@
         <git-plugin.version>3.1.0</git-plugin.version>
         <workflow-support-plugin.version>2.17</workflow-support-plugin.version>
         <scm-api-plugin.version>2.0.8</scm-api-plugin.version>
-        <groovy-cps.version>1.23-20180226.154155-1</groovy-cps.version> <!-- TODO: Change to release -->
+        <groovy-cps.version>1.23</groovy-cps.version>
         <jenkins-test-harness.version>2.33</jenkins-test-harness.version>
     </properties>
     <dependencies>