TrigConfigSvc: VarHandle migration.

Change TrigConfDataIOVChanger get the run number from EventContext, rather than doing a retrieve of EventInfo.

This merge request affects 1 package:

• Trigger/TrigConfiguration/TrigConfigSvc

added Trigger master review-pending-level-1 labels

CI Result SUCCESS

	Athena	AthSimulation
externals
cmake
make
required tests
optional tests

Full details available at NICOS MR-20805-2019-02-01-06-29
Athena: number of compilation errors 0, warnings 0
AthSimulation: number of compilation errors 0, warnings 0
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added review-approved label and removed review-pending-level-1 label

merged

mentioned in commit 6a5e633c

added sweep:ignore label