Merge branch 'cherry-pick-2c394f5b [formerly 161caf67f7]-21.0' into '21.0'

Sweeping !11357 from 21.0-TrigMC to 21.0.
add protection to FTK_DataProviderSvc to create VertexCollection even when vertexing not run

See merge request atlas/athena!11407

Former-commit-id: f5eb51ac2bb23b908a6ad739b8c144df41d07785