Bump org.jenkins-ci.plugins:plugin from 5.7 to 5.9 (#110)

Bumps [org.jenkins-ci.plugins:plugin](https://github.com/jenkinsci/plugin-pom) from 5.7 to 5.9. - [Release notes](https://github.com/jenkinsci/plugin-pom/releases) - [Changelog](https://github.com/jenkinsci/plugin-pom/blob/master/CHANGELOG.md) - [Commits](jenkinsci/plugin-pom@plugin-5.7...plugin-5.9) --- updated-dependencies: - dependency-name: org.jenkins-ci.plugins:plugin dependency-version: '5.9' dependency-type: direct:production update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

pom.xml

@@ -5,7 +5,7 @@
  <parent>
  <groupId>org.jenkins-ci.plugins</groupId>
  <artifactId>plugin</artifactId>
- <version>5.7</version>
+ <version>5.9</version>
  <relativePath />
  </parent>