Fix primary vertexing configuration of AMVF in ACTS
This MR introduce a new configuration of the AMVF algorithm for upgrade tracking studies, matching the parameters of AMVF defined in release 21.9 - see https://gitlab.cern.ch/atlas/athena/-/blob/release/21.9.26/InnerDetector/InDetRecTools/InDetPriVxFinderTool/src/InDetAdaptiveMultiPriVxFinderTool.cxx#L67-87