Move components to a proper templates/ folder

What does this MR do?

This will hopefully solve the broken release job.

That might be because we're using the deprecated way of storing components: https://docs.gitlab.com/ee/ci/components/#component-configurations-saved-in-any-directory-deprecated. The new way is to store all components under a templates folder: https://docs.gitlab.com/ee/ci/components/#directory-structure.

Closes #36 (closed).

Check-list

• Ensure commits include Changelog: trailer
• Verify the change in all affected pipelines.