Merge branch 'fexsim' into 'master'

L1CaloFEXSim: lock flags in unit test

See merge request !47659

Trigger/TrigT1/L1CaloFEX/L1CaloFEXSim/python/L1CaloFEXSimCfg.py

@@ -45,6 +45,7 @@ if __name__ == '__main__':
     flags.Scheduler.CheckDependencies=True
     flags.Scheduler.ShowDataFlow=True
     flags.Trigger.enableL1MuonPhase1=True
+    flags.lock()
 
     from AthenaConfiguration.MainServicesConfig import MainServicesCfg
     acc = MainServicesCfg(flags)