Parse jobNumber also when running simulation

Parse jobNumber also when running simulation. Needed for variable beamspot.

/cc @jchapman @mbandier @tlari

Simulation/SimulationConfig/python/SimConfigFlags.py

@@ -253,6 +253,9 @@ def simulationRunArgsToFlags(runArgs, flags):
         flags.Input.OverrideRunNumber = True
         flags.Input.LumiBlockNumber = [1] # dummy value
 
+    if hasattr(runArgs, "jobNumber"):
+        flags.Input.JobNumber = runArgs.jobNumber
+
     if hasattr(runArgs, "physicsList"):
         flags.Sim.PhysicsList = runArgs.physicsList