Bump org.jenkins-ci.plugins:jackson2-api

Bumps [org.jenkins-ci.plugins:jackson2-api](https://github.com/jenkinsci/jackson2-api-plugin) from 2.20.0-417.va_5311a_823a_b_8 to 2.20.0-420.v8a_08b_d57ca_05.
- [Release notes](https://github.com/jenkinsci/jackson2-api-plugin/releases)
- [Changelog](https://github.com/jenkinsci/jackson2-api-plugin/blob/master/CHANGELOG.md)
- [Commits](https://github.com/jenkinsci/jackson2-api-plugin/commits)

---
updated-dependencies:
- dependency-name: org.jenkins-ci.plugins:jackson2-api
  dependency-version: 2.20.0-420.v8a_08b_d57ca_05
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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