Add missing CA-based configuration of ZeroLifetimePositioner for G4AtlasAlg (ATLASSIM-6584)
Unlike the tests in ISF, test_RUN3_AtlasG4_QS_ttbar_MT.sh
did show a difference when
running the canonical 50 events with and without the ZeroLifetimePositioner
when quasi-stable
particle simulation is enabled.
This merge request adds the ZeroLifetimePositioner
configuration to the CA-based configuration of G4AtlasAlg
.