Fix indices in AtlListBSEvent

Update the AtlListBSevent utility to print the event indices starting with 0 (as the EventLoopMgr does). Also: Systematically use unique_ptr

added alsoTargeting:22.0 label

This merge request affects 1 package:

• Event/ByteStreamCnvSvc

This merge request affects 1 file:

• Event/ByteStreamCnvSvc/test/AtlListBSEvents.cxx

Adding @tadej as watcher

added EDM master review-pending-level-1 labels

CI Result SUCCESS (hash af2d58fd)

	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 53460]

lgtm approving -- L1

added review-approved label and removed review-pending-level-1 label

merged

mentioned in commit 7d41e658

added sweep:done label

picked the changes into the branch cherry-pick-7d41e6588c4-22.0 with commit 898625ff

mentioned in commit 898625ff

Sweep summary
successful:

• 22.0

(see https://aiatlas154.cern.ch/jenkins/job/auto_git_sweeps/2700/console for details)

mentioned in merge request !53957 (merged)

mentioned in commit 06e70c1a

mentioned in commit e715177a