Update to a newer parent POM and specify your `jenkins.version` and
`java.level`:
https://github.com/jenkinsci/plugin-pom#usage
You can delete the `jenkins-test-harness.version` override. You can
also delete your configuration of `maven-deploy-plugin`, your
`distributionManagement`, and if possible your `MidVision` repository
(since all libraries needed by the plugin ought to be uploaded to
`
repo.jenkins-ci.org/public`).