Update gitlab runner helm chart to 0.1.39

What does this MR do?

Update's used GitLab Runner Helm Chart to version 0.1.39, which uses GitLab Runner 11.5.1.

What are the relevant issue numbers?

Closes gitlab-runner#3807 (closed).

Does this MR meet the acceptance criteria?

• Changelog entry added, if necessary
• [-] Documentation created/updated
• Tests added for this feature/bug
• Conforms to the code review guidelines
• Conforms to the merge request performance guidelines
• Conforms to the style guides
• Conforms to the database guides
• [-] Link to e2e tests MR added if this MR has Requires e2e tests label. See the Test Planning Process.
• [-] Security reports checked/validated by reviewer