Sweeping !21904 from 21.3 to 21.9. Apply MMSimHit in MM fast digitization (ATLASSIM-3755)

Atlas Nightlybuildrequested to merge
cherry-pick-84f662910d-21.9 into 21.9

Apply MMSimHit in MM fast digitization (ATLASSIM-3755)

See merge request !21904 (merged)

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