Test for Redesign the Jenkins header #10245

[janfaracik]

Redesign the Jenkins header

jenkinsci/jenkins#10245

[MarkEWaite]

The master branch currently has failing tests for the docker-workflow plugin. I've proposed a pull request to resolve that:

• Use docker ps to detect absence of docker permissions docker-workflow-plugin#336

That pull request is being checked in:

• Bump org.jenkins-ci.plugins:docker-workflow from 592.v1001d948426c to 596.v3e6972b_46b_e2 in /bom-weekly #4473

I've proposed a pull request to temporarily switch to the previous release of docker-workflow:

• Use docker-workflow 592.v1001d948426c, not 595.v60cec912059b_ #4472