Update core dependency to 1.609.1

Author: rodrigc

pom.xml

@@ -3,7 +3,7 @@
   <parent>
     <groupId>org.jenkins-ci.plugins</groupId>
     <artifactId>plugin</artifactId>
-    <version>1.565.3</version>
+    <version>1.609.1</version>
   </parent>
 
   <artifactId>scm-sync-configuration</artifactId>