Bump xstream from 1.4.18 to 1.4.19 (#6231)
Bump xstream from 1.4.18 to 1.4.19 (#6231)

Bumps [xstream](https://github.com/x-stream/xstream) from 1.4.18 to 1.4.19.
- [Release notes](https://github.com/x-stream/xstream/releases)
- [Commits](https://github.com/x-stream/xstream/commits)

---
updated-dependencies:
- dependency-name: com.thoughtworks.xstream:xstream
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>

Co-authored-by: dependabot[bot] <1c358da00a777d4e9898c1280ab801e2df165188@users.noreply.github.com>
rsandell/jenkins,ikedam/jenkins,jenkinsci/jenkins,daniel-beck/jenkins,jenkinsci/jenkins,jenkinsci/jenkins,daniel-beck/jenkins,MarkEWaite/jenkins,daniel-beck/jenkins,jenkinsci/jenkins,daniel-beck/jenkins,damianszczepanik/jenkins,daniel-beck/jenkins,MarkEWaite/jenkins,damianszczepanik/jenkins,v1v/jenkins,ikedam/jenkins,damianszczepanik/jenkins,ikedam/jenkins,viqueen/jenkins,damianszczepanik/jenkins,jenkinsci/jenkins,ikedam/jenkins,MarkEWaite/jenkins,v1v/jenkins,v1v/jenkins,viqueen/jenkins,v1v/jenkins,damianszczepanik/jenkins,daniel-beck/jenkins,ikedam/jenkins,MarkEWaite/jenkins,rsandell/jenkins,v1v/jenkins,viqueen/jenkins,damianszczepanik/jenkins,jenkinsci/jenkins,viqueen/jenkins,ikedam/jenkins,jenkinsci/jenkins,rsandell/jenkins,daniel-beck/jenkins,ikedam/jenkins,rsandell/jenkins,daniel-beck/jenkins,MarkEWaite/jenkins,v1v/jenkins,MarkEWaite/jenkins,viqueen/jenkins,MarkEWaite/jenkins,rsandell/jenkins,viqueen/jenkins,rsandell/jenkins,jenkinsci/jenkins,rsandell/jenkins,viqueen/jenkins,damianszczepanik/jenkins,v1v/jenkins,MarkEWaite/jenkins,ikedam/jenkins,damianszczepanik/jenkins,rsandell/jenkins