Require Jenkins 2.401.3 or newer

The gson-api plugin has been added to the bom-2.401.x line. That will
allow the plugin to stop bundling the transitive dependency on the
gson-api jar file.  That reduces the size of the hpi file and avoids
duplicating the gson-api file in multiple locations inside Jenkins.

#1077 from
@jonesbusy inspired this pull request.

pom.xml

@@ -64,7 +64,7 @@
     <argLine>-Dfile.encoding=${project.build.sourceEncoding}</argLine>
     <gitHubRepo>jenkinsci/${project.artifactId}-plugin</gitHubRepo>
     <!-- https://www.jenkins.io/doc/developer/plugin-development/choosing-jenkins-baseline/ -->
-    <jenkins.version>2.387.3</jenkins.version>
+    <jenkins.version>2.401.3</jenkins.version>
     <jgit.version>6.8.0.202311291450-r</jgit.version>
     <spotbugs.effort>Max</spotbugs.effort>
     <spotbugs.threshold>Low</spotbugs.threshold>
@@ -75,8 +75,8 @@
     <dependencies>
       <dependency>
         <groupId>io.jenkins.tools.bom</groupId>
-        <artifactId>bom-2.387.x</artifactId>
-        <version>2543.vfb_1a_5fb_9496d</version>
+        <artifactId>bom-2.401.x</artifactId>
+        <version>2612.v3d6a_2128c0ef</version>
         <type>pom</type>
         <scope>import</scope>
       </dependency>