Bump org.jenkins-ci.plugins:plugin from 4.88 to 5.9 (#120)

Author: dependabot[bot]

pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <groupId>org.jenkins-ci.plugins</groupId>
     <artifactId>plugin</artifactId>
-    <version>4.88</version>
+    <version>5.9</version>
     <relativePath />
   </parent>
 
@@ -33,8 +33,9 @@
   <properties>
     <revision>3.4.1</revision>
     <changelist>999999-SNAPSHOT</changelist>
-    <jenkins.baseline>2.452</jenkins.baseline>
-    <jenkins.version>${jenkins.baseline}.4</jenkins.version>
+    <!-- https://www.jenkins.io/doc/developer/plugin-development/choosing-jenkins-baseline/ -->
+    <jenkins.baseline>2.479</jenkins.baseline>
+    <jenkins.version>${jenkins.baseline}.3</jenkins.version>
     <gitHubRepo>jenkinsci/${project.artifactId}-plugin</gitHubRepo>
     <hpi.compatibleSinceVersion>3.2</hpi.compatibleSinceVersion>
     <spotless.check.skip>false</spotless.check.skip>