mCBM SIM QA: Increase accepted range for TRD pulls mean to pass low stats CI

macro/mcbm/mcbm_qa.C

@@ -262,6 +262,7 @@ void mcbm_qa(Int_t nEvents = 0,
     // CA Input QA
     auto* pCaInputTrd = new CbmCaInputQaTrd(verbose, bUseMC);
     pCaInputTrd->SetEfficiencyThrsh(0.5, 0, 100);
+    pCaInputTrd->SetPullMeanDeviationThrsh(0.3);
     qaManager->AddTask(pCaInputTrd);
   }
   // ------------------------------------------------------------------------