[CI] Fix condition for MR cont verif stage vs DC branch

also contains backport of !1514 (merged) to preserver linear history and simplify final backport to master

requested review from @p.-a.loizeau

assigned to @p.-a.loizeau

added CI/CD DC branch labels

mentioned in merge request !1516 (merged)

added 2 commits

• 01be99b1 - update of Kf track fit; Bba alignment
• e1db38af - [CI] Fix condition for MR cont verif stage vs DC branch

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changed the description

merged

mentioned in merge request !1521 (merged)

added Ported label