Deploy new docker-based jenkins runners
To support the increase in load to cater for swh/infra/ci-cd/swh-jenkins-jobs#4366 / swh/meta#5041, introduce a handful of VMs with scratch storage on fast storage to run jenkins jobs.
To support the increase in load to cater for swh/infra/ci-cd/swh-jenkins-jobs#4366 / swh/meta#5041, introduce a handful of VMs with scratch storage on fast storage to run jenkins jobs.