Wrap calls to soon to be obsolete barcode function

We are in the process of migrating athena away from using HepMC2 barcodes.
Most existing calls have been wrapped by the HepMC::barcode() helper function.
This merge request wraps some additional calls which were added after the last clean-up.

This change should be transparent.

Tagging @dguest, @jojungge, @pibutti

MuonSpectrometer/MuonPhaseII/MuonPatternRecognition/MuonTruthAlgsR4/src/TruthSegToTruthPartAssocAlg.cxx

@@ -10,6 +10,7 @@
 #include "Identifier/Identifier.h"
 #include "MuonTruthHelpers/MuonSimHitHelpers.h"
 #include "MuonPatternEvent/SegmentFitterEventData.h"
+#include "TruthUtils/HepMCHelpers.h"
 
 #include <unordered_set>
 
@@ -58,7 +59,7 @@ namespace MuonR4{
             segLinkDecor(*truthMuon).clear();
             IdSet_t assocIds{};
             ATH_MSG_DEBUG("Truth muon "<<truthMuon->pt()<<", eta: "<<truthMuon->eta()<<", "<<truthMuon->phi()
-                         <<", barcode: "<<truthMuon->barcode());
+                         <<", barcode: "<<HepMC::barcode(truthMuon));
             for (const IdDecorHandle_t& hitDecor : idDecorHandles) {
                 std::ranges::transform(hitDecor(*truthMuon), std::inserter(assocIds, assocIds.begin()),
                                        [this](unsigned long long rawId){
@@ -121,7 +122,7 @@ namespace MuonR4{
                         }
                         if (!counts) continue;
                         ATH_MSG_VERBOSE("Truth muon "<<truthMuon->pt()<<", eta: "<<truthMuon->eta()<<", "<<truthMuon->phi()
-                             <<", barcode: "<<truthMuon->barcode()<<", matched hits: "<<counts<<", unmatched: "<<std::endl<<unMatchedStr.str());
+                             <<", barcode: "<<HepMC::barcode(truthMuon)<<", matched hits: "<<counts<<", unmatched: "<<std::endl<<unMatchedStr.str());
                     }
                 }
                 continue;