testing jenkinsci/plugin-pom#706 with expand

Author: jtnord

pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <groupId>org.jenkins-ci.plugins</groupId>
     <artifactId>plugin</artifactId>
-    <version>4.54</version>
+    <version>4.56-flatten-expand-SNAPSHOT</version>
     <relativePath />
   </parent>