Fix non-virtual-dtor warnings from G4VFastSimSensitiveDetector
3 ../Sim/GiGaMTExamples/G4Par04/src/CaloSensitiveDetector.cpp:29:10: warning: base class 'class G4VFastSimSensitiveDetector' has accessible non-virtual destructor [-Wnon-virtual-dtor]
4 29 | struct CaloSensDet final : public G4VSensitiveDetector,
5 | ^~~~~~~~~~~