fix: Geant4SensitiveAction<T>::process requires const G4Step*

This fails on dd4hep-1.21 (after https://github.com/AIDASoft/DD4hep/pull/933).

assigned to @wdconinc

added 1 commit

• d2c6f040 - fix: allow for dd4hep version before 1.21 and after

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• 024d58f3 - fix: include dd4hep version header

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added 1 commit

• 88a1ac55 - fix: use DD4hep/Version.h correct path

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enabled an automatic merge when the pipeline for 88a1ac55 succeeds

merged