build: bump jenkins-core from 2.204.1 to 2.338

Bumps [jenkins-core](https://github.com/jenkinsci/jenkins) from 2.204.1 to 2.338.
- [Release notes](https://github.com/jenkinsci/jenkins/releases)
- [Changelog](https://github.com/jenkinsci/jenkins/blob/master/changelog.html)
- [Commits](jenkinsci/jenkins@jenkins-2.204.1...jenkins-2.338)

---
updated-dependencies:
- dependency-name: org.jenkins-ci.main:jenkins-core
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

pom.xml

@@ -55,7 +55,7 @@
         <changelist>999999-SNAPSHOT</changelist>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <java.level>8</java.level>
-        <jenkins.core.version>2.204.1</jenkins.core.version>
+        <jenkins.core.version>2.338</jenkins.core.version>
     </properties>
 
     <scm>