Update templates for 11.4

What does this MR do?

Updates templates for 11-4 (part of release process https://gitlab.com/gitlab-org/release/docs/blob/master/general/release-candidates.md#step-1-update-the-gitignore-gitlab-ciyml-and-dockerfile-templates)

What are the relevant issue numbers?

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