TrkGlobalChi2AlignTools: Fix out-of-bounds matrix access.

Eigen matrix indices are 0-based, not 1-based. Fixes gcc10 warning about out-of-bounds array access.

This merge request affects 1 package:

• Tracking/TrkAlignment/TrkGlobalChi2AlignTools

This merge request affects 1 file:

• Tracking/TrkAlignment/TrkGlobalChi2AlignTools/src/GlobalChi2AlignTool.cxx

Adding @amorley as watcher

added Tracking master review-pending-level-1 labels

CI Result SUCCESS (hash c402fce0)

	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 27969]

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

merged

mentioned in commit 7680b312

added sweep:ignore label