We have some orphans changelog items under `/ee/changelogs/unreleased-ee`

It seems we have some orphans changelog items under https://gitlab.com/gitlab-org/gitlab-ee/tree/master/ee/changelogs/unreleased-ee.

We should add these individually to the correct release they belong to in https://gitlab.com/gitlab-org/gitlab-ee/blob/master/CHANGELOG-EE.md.