Update MC20 reco chain ART tests

Update MC20 reco chain ART tests (fixes ATLASRECTS-6650). I deleted one of the tests as two tests were both running trigger.

/cc @mhodgkin

Reconstruction/RecExample/RecJobTransformTests/test/test_mc20e_13TeV.sh

 #!/bin/sh
 #
-# art-description: Run reco using mc20e + pileup.
+# art-description: Run reco using mc20e (overlay+trigger+rco)
 # art-output: log.*
 # art-athena-mt: 8
 # art-type: grid
 # art-include: master/Athena
 
-#Unset these to get around ATLASJT-420
-unset ATHENA_CORE_NUMBER
-unset ATHENA_PROC_NUMBER
-
-Reco_tf.py --AMI=r12806 --outputRDOFile=myRDO.pool.root --outputAODFile=myAOD.pool.root --outputESDFile=myESD.pool.root --inputHITSFile=/cvmfs/atlas-nightlies.cern.ch/repo/data/data-art/RecJobTransformTests/mc16_13TeV/valid1/valid1.410000.PowhegPythiaEvtGen_P2012_ttbar_hdamp172p5_nonallhad.simul.HITS.e4993_s3227/HITS.12560240._000287.pool.root.1 --inputRDO_BKGFile=/cvmfs/atlas-nightlies.cern.ch/repo/data/data-art/OverlayTests/PresampledPileUp/22.0/Run2/large/mc20e_presampling.2k.latest.RDO.pool.root --maxEvents=500 --imf False --conditionsTag="OFLCOND-MC16-SDR-RUN2-09"
+Reco_tf.py --AMI=r13145 --outputRDOFile=myRDO.pool.root --outputAODFile=myAOD.pool.root --outputESDFile=myESD.pool.root --inputHITSFile=/cvmfs/atlas-nightlies.cern.ch/repo/data/data-art/Tier0ChainTests/mc16_13TeV.410470.PhPy8EG_A14_ttbar_hdamp258p75_nonallhad.simul.HITS.e6337_s3681/HITS.25836812._004813.pool.root.1 --inputRDO_BKGFile=/cvmfs/atlas-nightlies.cern.ch/repo/data/data-art/OverlayTests/PresampledPileUp/22.0/Run2/large/mc20_13TeV.900149.PG_single_nu_Pt50.digit.RDO.e8307_s3482_s3136_d1715/RDO.26811908._031801.pool.root.1 --maxEvents=10 --imf False
 
 RES=$?
 echo "art-result: $RES Reco"