Bump org.jenkins-ci:jenkins from 1.120 to 1.121

Bumps [org.jenkins-ci:jenkins](https://github.com/jenkinsci/pom) from 1.120 to 1.121.
- [Release notes](https://github.com/jenkinsci/pom/releases)
- [Changelog](https://github.com/jenkinsci/pom/blob/master/CHANGELOG-old.md)
- [Commits](jenkinsci/pom@jenkins-1.120...jenkins-1.121)

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

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

pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <groupId>org.jenkins-ci</groupId>
     <artifactId>jenkins</artifactId>
-    <version>1.120</version>
+    <version>1.121</version>
     <relativePath />
   </parent>