Fix a10t JetCollection name in Legacy JetMonitoring Tool

This MR addresses the issue with a10t chains in the legacy JetMonitoring tool observed in https://its.cern.ch/jira/browse/ATR-22590

We adopt the new name for the underlying jet collection of a10t chains (PtFrac5 --> PtFrac4) for processing new AthenaMT samples, and the plots are filled properly again.

Tagging @jbossios (btw, sorry for the many included commits, I don't know why they still show up after so many merges)

WARNING: big files (>100K) are found in the changeset

128K in file Trigger/TrigMonitoring/TrigJetMonitoring/src/HLTJetMonTool.cxx

This merge request affects 1 package:

• Trigger/TrigMonitoring/TrigJetMonitoring

This merge request affects 1 file:

• Trigger/TrigMonitoring/TrigJetMonitoring/src/HLTJetMonTool.cxx

added DQ JetEtmiss Trigger master review-pending-level-1 labels

CI Result SUCCESS (hash 8859243c)

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

Full details available on this CI monitor view
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
For experts only: Jenkins output [CI-MERGE-REQUEST-CC7 28074]

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

merged

mentioned in commit 08818d17

added sweep:ignore label