Fact
No Skyborne racial ability found relating to professions/gathering/crafting; their four racials (Walk on Air, Wind Blessed, Elemental Insight, and a faction-split ability — Horde gets Skysight, +10% run speed) are all combat/movement-oriented, not profession-oriented.
Confidence note
Confirmed absence in sources checked (not proof of non-existence, but none surfaced across two dedicated Skyborne guides)