Integrate gitlab-ci/yt-230-manifest-build-triggers-only-fngsystem

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Commit: seco-ne/yocto/infrastructure/gitlab-ci@417b79ef

YT-230: Fix Manifest Pipeline after "Improve Release" Changes

The recent changes introduced new rules in manifest-pipeline-yocto.yml,
which have overwritten the general rules defined in build-pipeline.yml.
Use !reference to combine both sets of rules effectively.