Merge branch '21.6-artfix' into '21.6'

ART tests - correct to reduce the time needed for running

See merge request !46377

Generators/EvgenJobTransforms/test/test_gen_mgpythia8_ttW.sh

-#!/bin/bash
-# art-description: Generation test MG+Py8 ttW 
-# art-include: 21.6/AthGeneration
-# art-type: build
-# art-output: *.root
-# art-output: log.generate
-
-## Any arguments are considered overrides, and will be added at the end
-export TRF_ECHO=True;
-rm *;
-Gen_tf.py --ecmEnergy=13000 --jobConfig=421108 --maxEvents=100 \
-    --outputEVNTFile=test_mgpythia8_ttW.EVNT.pool.root \
-
-echo "art-result: $? generate"
-
-

Generators/EvgenJobTransforms/test/test_gen_py8_JZ2MultiBJetFilt.sh

@@ -7,7 +7,7 @@
 
 ## Any arguments are considered overrides, and will be added at the end
 export TRF_ECHO=True;
-Gen_tf.py --ecmEnergy=13000 --jobConfig=421126 --maxEvents=100 \
+Gen_tf.py --ecmEnergy=13000 --jobConfig=421126 --maxEvents=5 \
     --outputEVNTFile=test_Py8JZ2MultiBJetFilt.EVNT.pool.root \
 
 echo "art-result: $? generate"