G4DebuggingTools: fix thread-checker warnings

• remove unnecessary mutable
• replace C-style casts
• const fixes

build area is cleaned as the previous build was for the MR labeled as full-build

This merge request affects 1 package:

• Simulation/G4Utilities/G4DebuggingTools

This merge request affects 6 files:

• Simulation/G4Utilities/G4DebuggingTools/G4DebuggingTools/ATLAS_CHECK_THREAD_SAFETY
• Simulation/G4Utilities/G4DebuggingTools/src/EnergyConservationTest.h
• Simulation/G4Utilities/G4DebuggingTools/src/G4AtlantisDumper.h
• Simulation/G4Utilities/G4DebuggingTools/src/TestBoundariesUserAction.cxx
• Simulation/G4Utilities/G4DebuggingTools/src/VerboseSelector.cxx
• Simulation/G4Utilities/G4DebuggingTools/src/VerboseSelector.h

Adding @jchapman as watcher

added Simulation master review-pending-level-1 labels

CI Result SUCCESS (hash 2be78810)

	Athena	AthSimulation	AthGeneration	AnalysisBase	AthAnalysis	DetCommon
externals
cmake
make
required tests
optional tests

Full details available on this CI monitor view. Check the JIRA CI status board for known problems
Athena: number of compilation errors 0, warnings 0
AthSimulation: number of compilation errors 0, warnings 0
AthGeneration: number of compilation errors 0, warnings 0
AnalysisBase: number of compilation errors 0, warnings 0
AthAnalysis: number of compilation errors 0, warnings 0
DetCommon: number of compilation errors 0, warnings 0
For experts only: Jenkins output [CI-MERGE-REQUEST-CC7 54790]

merged

mentioned in commit 52f2ffa3

added sweep:ignore label