Changes in RatesTrigger.cxx and RatesAnalysisAlg.cxx, tested with:
asetup Athena,23.0,r2023-04-03T2101 test_trigP1_v1PhysP1_T0MonTrf_build.py
The changes in RatesTrigger also fix the FPE DIVBYZERO warnings for ATR-27151.
Tagging @aporeba