Add openshift support by creating a cache dir

What does this MR do?

Update to support openshift. You can see it working in http://gitlab.apps.secure-stage-openshift-test.k8s-ft.win/root/go/-/jobs/899

What are the relevant issue numbers?

gitlab-org/gitlab#323118 (closed)

Does this MR meet the acceptance criteria?

• Changelog entry added
• Documentation created/updated for GitLab EE, if necessary
• Documentation created/updated for this project, if necessary
• Documentation reviewed by technical writer or follow-up review issue created
• Tests added for this feature/bug
• Job definition updated, if necessary
  • Auto-DevOps template
  • Job definition example
  • CI Templates
• Conforms to the code review guidelines
• Conforms to the Go guidelines
• Security reports checked/validated by reviewer