Fix O2 Linter warnings

Author: samrangy

PWGHF/HFC/TableProducer/correlatorD0Hadrons.cxx

@@ -192,14 +192,15 @@ struct HfCorrelatorD0Hadrons {
   double massK{0.};
   double softPiMass = 0.14543; // pion mass + Q-value of the D*->D0pi decay
 
+  HfHelper hfHelper;
+  SliceCache cache;
+  
   Filter collisionFilter = aod::hf_selection_dmeson_collision::dmesonSel == true;
   Filter trackFilter = requireGlobalTrackWoDCAInFilter() && (nabs(aod::track::eta) < etaTrackMax) && (aod::track::pt > ptTrackMin) && (aod::track::pt < ptTrackMax) && (nabs(aod::track::dcaXY) < dcaXYTrackMax) && (nabs(aod::track::dcaZ) < dcaZTrackMax);
   Filter d0Filter = (aod::hf_sel_candidate_d0::isSelD0 >= 1) || (aod::hf_sel_candidate_d0::isSelD0bar >= 1);
   Filter collisionFilterGen = aod::hf_selection_dmeson_collision::dmesonSel == true;
   Filter particlesFilter = nabs(aod::mcparticle::pdgCode) == static_cast<int>(Pdg::kD0) || ((aod::mcparticle::flags & (uint8_t)o2::aod::mcparticle::enums::PhysicalPrimary) == (uint8_t)o2::aod::mcparticle::enums::PhysicalPrimary);
 
-  HfHelper hfHelper;
-  SliceCache cache;
   Preslice<aod::HfCand2Prong> perCol = aod::hf_cand::collisionId;
 
   ConfigurableAxis zPoolBins{"zPoolBins", {VARIABLE_WIDTH, -10.0f, -2.5f, 2.5f, 10.0f}, "z vertex position pools"};