main purpose of the build: new version of Powheg -06-02

contains MRs:

 https://gitlab.cern.ch/atlas/athena/-/merge_requests/64013 Drop the PdtPdg.h 

https://gitlab.cern.ch/atlas/athena/-/merge_requests/64180 ART scripts/tests change master-> main. For 23.0 

https://gitlab.cern.ch/atlas/athena/-/merge_requests/64187 ART tests: add test for PG+EG, modify some other tests 

https://gitlab.cern.ch/atlas/athena/-/merge_requests/64174 Attempt to create a non-recursive fromDecay in the FixHepMC 

https://gitlab.cern.ch/atlas/athena/-/merge_requests/64250 Fix defects ( passed by value) reported by cppcheck

https://gitlab.cern.ch/atlas/athena/-/merge_requests/64468 Remove ifdefs not needed with HepMC3.2.6 

https://gitlab.cern.ch/atlas/athena/-/merge_requests/62798 Cleanup the PhysicsAnalysis, Generators and Simulation using the capabilities of HepMC3.2.5+ 

https://gitlab.cern.ch/atlas/athena/-/merge_requests/64478 Remove unused boost::filesystem from the CMakeLists 

https://gitlab.cern.ch/atlas/athena/-/merge_requests/64507 Remove the unused boost subpackages from the CMakeLists 

https://gitlab.cern.ch/atlas/athena/-/merge_requests/64490 Further unification of TruthHelpers functions

https://gitlab.cern.ch/atlas/athena/-/merge_requests/64540 Use HepMC3.2.6 capabilities to simplify the code

https://gitlab.cern.ch/atlas/athena/-/merge_requests/64295  Bump the version of Sherpa to 3 in master

https://gitlab.cern.ch/atlas/athena/-/merge_requests/64550 Use the TruthUtils for particle selection, part A 

https://gitlab.cern.ch/atlas/athena/-/merge_requests/64558 Unification of truthutils 

https://gitlab.cern.ch/atlas/athena/-/merge_requests/64598 Use the TruthUtils for particle selection, part D 

https://gitlab.cern.ch/atlas/athena/-/merge_requests/64571 Use functions from TruthUtils only with objects 

https://gitlab.cern.ch/atlas/athena/-/merge_requests/64650 Added FORWARDTRANSPORTMODELSTATUS to the list of constants in TruthUtils

https://gitlab.cern.ch/atlas/athena/-/merge_requests/64651 Introduce is_same_generator_particle function and use it in MuonTruthAlgs 

https://gitlab.cern.ch/atlas/athena/-/merge_requests/64514 Replace the status checks with TruthUtils functions 

https://gitlab.cern.ch/atlas/athena/-/merge_requests/64686 Fix a bug in AtlasPID: check the number of digits in the pid before finding the minimal/maximal, main 

https://gitlab.cern.ch/atlas/athena/-/merge_requests/64713 Introduce the SIM_STATUS_INCREMENT as a step to migrate from barcode() 

https://gitlab.cern.ch/atlas/athena/-/merge_requests/64712 Preparations to migrate to status() instead of barcode() in Simulation 

https://gitlab.cern.ch/atlas/athena/-/merge_requests/64726 Specify units for ECM in sherpaTarCreator help text 

https://gitlab.cern.ch/atlas/athena/-/merge_requests/64725 Update MagicNumbers.h: set the special status to 902 instead of 10902. 

https://gitlab.cern.ch/atlas/athena/-/merge_requests/64562 Updates for Sherpa interface 

https://gitlab.cern.ch/atlas/athena/-/merge_requests/64714 Cleanup in MCTruthClassifier and preparations to migrate to status() instead of barcode() 

https://gitlab.cern.ch/atlas/athena/-/merge_requests/64756 Generators: Rivet_i docs update 

https://gitlab.cern.ch/atlas/athena/-/merge_requests/64801 Sherpa_i: FIx compilation with C++20

https://gitlab.cern.ch/atlas/athena/-/merge_requests/64819 Sherpa_i: make the CMakeLists.txt functional for Sherpa2 and 3 without modifications 

https://gitlab.cern.ch/atlas/athena/-/merge_requests/64882 Updates in MCTruthClassifier to avoid explicit barcode usage, attempt 4 

https://gitlab.cern.ch/atlas/athena/-/merge_requests/64888 Herwig7_i : support for showering LHE files generated from a UFO file containting BSM particle 

https://gitlab.cern.ch/atlas/athena/-/merge_requests/64926 GeneratorFilters: Fix clang warning. 

https://gitlab.cern.ch/atlas/athena/-/merge_requests/64916 New function "isSMLepton" in AtlasPID 

https://gitlab.cern.ch/atlas/athena/-/merge_requests/64962 Update the truth matching algorithm in MuonTruthDecorationAlg 

https://gitlab.cern.ch/atlas/athena/-/merge_requests/64850 Make FrozenShowers compatible with HepMC3 

https://gitlab.cern.ch/atlas/athena/-/merge_requests/65128 Update MagicNumbers.h to introduce a function that converts the old simulation labeling scheme into a new one

https://gitlab.cern.ch/atlas/athena/-/merge_requests/65223 TruthUtils: Fix logic errors in old_to_new_simulation_scheme. 

https://gitlab.cern.ch/atlas/athena/-/merge_requests/65236 Powheg: Update version of Powheg to ATLAS-PowhegOTF-06-02 

https://gitlab.cern.ch/atlas/athena/-/merge_requests/65251 adding keepStrongVertices option, see ATLHI-483

https://gitlab.cern.ch/atlas/athena/-/merge_requests/65288 Fix for HepMCHelpers.h and tweak for constant definitions in MagicNumbers.h 

https://gitlab.cern.ch/atlas/athena/-/merge_requests/65333 EvtGen_i: Fix for Pythia 8.310 

https://gitlab.cern.ch/atlas/athena/-/merge_requests/65334 Pythia8_i: Update for Pythia 8.310

https://gitlab.cern.ch/atlas/athena/-/merge_requests/65290 Add new status-based helper functions to TruthUtils/MagicNumbers.h 

https://gitlab.cern.ch/atlas/athena/-/merge_requests/65384 Pythia8_i: Work around pythia 8.310 plugin issues.

https://gitlab.cern.ch/atlas/athena/-/merge_requests/65391 Allowing option of single-core "multicore" running in MGC 

https://gitlab.cern.ch/atlas/athena/-/merge_requests/65383 TruthUtils: Don't write in the source tree when running the test. 

https://gitlab.cern.ch/atlas/athena/-/merge_requests/65417 second fix for ATLHI-483, unstable particles with no decay vertex 

https://gitlab.cern.ch/atlas/athena/-/merge_requests/64114 Herwig7_i: Add a Herwig7 config checker 

https://gitlab.cern.ch/atlas/athena/-/merge_requests/65426 TruthJets: corrections to FindJets to avoid crash on the legacy Athena Configuration check 

https://gitlab.cern.ch/atlas/athena/-/merge_requests/65249 McEventCollection_p7 TP Convertors 

https://gitlab.cern.ch/atlas/athena/-/merge_requests/65503 Herwig7_i: Fix the JO-Checker 

https://gitlab.cern.ch/atlas/athena/-/merge_requests/65532 Replace boost::filesystem with std::filesystem in Herwig interface 

https://gitlab.cern.ch/atlas/athena/-/merge_requests/65541 Herwig7_i: Herwig fix 

https://gitlab.cern.ch/atlas/athena/-/merge_requests/65544 Superchic: change the name of env. variable