Reduction of nEvents (#2183)

This is to account for the hybro events multiplication in EPOS4 configuration, otherwise the generator will crash at the first generated event.

Author: jackal1-66

MC/config/examples/ini/GeneratorEPOS4_pp136TeV.ini

@@ -1,7 +1,7 @@
 #---> GeneratorEPOS4
 [GeneratorExternal]
 fileName=${O2DPG_MC_CONFIG_ROOT}/MC/config/examples/epos4/generator_EPOS4.C
-funcName=generateEPOS4("${O2DPG_MC_CONFIG_ROOT}/MC/config/examples/epos4/generator/pp_136TeV_hydro_cascade.optns", 2147483647)
+funcName=generateEPOS4("${O2DPG_MC_CONFIG_ROOT}/MC/config/examples/epos4/generator/pp_136TeV_hydro_cascade.optns", 214748364)
 
 [GeneratorFileOrCmd]
 cmd=${O2DPG_MC_CONFIG_ROOT}/MC/config/examples/epos4/epos.sh