Integrate gitlab-ci/move-changelog-generator and 3 more

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Commit: seco-ne/yocto/infrastructure/gitlab-ci@aaac8d1c

changelog_generator: Use logging instead of print, fix black

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Commit: seco-ne/yocto/infrastructure/gitlab-ci@79afb233

CI: Move changelog_generator to gitlab-ci project

The script can also be run in the normal python container, so this
slightly reduces the complexity.

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Commit: seco-ne/yocto/infrastructure/gitlab-ci@383a5aca

Added qt-multi-screen-compositor to project list

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Commit: seco-ne/yocto/infrastructure/gitlab-ci@3e88ad8e

buildfng: Moved the image and distro variables to global

The image and distro for the buildfng job can now be set via
global/external variables.