Bump workflow-multibranch from 2.20 to 2.22
Bump workflow-multibranch from 2.20 to 2.22

Bumps [workflow-multibranch](https://github.com/jenkinsci/workflow-multibranch-plugin) from 2.20 to 2.22.
- [Release notes](https://github.com/jenkinsci/workflow-multibranch-plugin/releases)
- [Changelog](https://github.com/jenkinsci/workflow-multibranch-plugin/blob/master/CHANGELOG.md)
- [Commits](https://github.com/jenkinsci/workflow-multibranch-plugin/compare/workflow-multibranch-2.20...workflow-multibranch-2.22)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
netceler/pipeline-maven-plugin,netceler/pipeline-maven-plugin,jenkinsci/pipeline-maven-plugin,jenkinsci/pipeline-maven-plugin