TrigT1, TrigMonitoring, TileCalorimeter : cppcheck and clang-tidy fixes

Christos Anastopoulosrequested to merge
ATLAS-EGamma/athena:cppcheck_clang into 23.0

TrigT1, TrigMonitoring, TileCalorimeter : cppcheck and clang-tidy fixes

Mainly using const ref rahter than value where applicable

ping @sroe

Edited by Christos Anastopoulos

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