Bump org.jenkins-ci:jenkins from 1.138 to 1.139 (#454)

Author: dependabot[bot]

pom.xml

@@ -4,7 +4,7 @@
   <parent>
     <groupId>org.jenkins-ci</groupId>
     <artifactId>jenkins</artifactId>
-    <version>1.138</version>
+    <version>1.139</version>
     <relativePath />
   </parent>