The steering class of TrigL2MuonSA is migrated from AthAlgorithm to AthReentrantAlgorithm in response to a discussion in ATR-21908. Local tests were repeated to check the thread-safety with 16-thread, 1000 events.
AthAlgorithm
AthReentrantAlgorithm
tagging @nakahama , @cdiez and @smh