Add .only-code-qa-changes to pages job
What does this MR do?
Adds the .only-code-qa-changes
extension to the pages
job in the ci pipeline, to prevent it from running on master for docs-only changes. See https://gitlab.com/gitlab-org/gitlab/pipelines/82831866, for example.
Related to !15761 (merged)
Edited by Marcel Amirault