GsfMeasurementUpdator: factor some common helper-like code

GsfMeasurementUpdator: factor some common helper-like code

This merge request affects 1 package:

• Tracking/TrkFitter/TrkGaussianSumFilterUtils

This merge request affects 1 file:

• Tracking/TrkFitter/TrkGaussianSumFilterUtils/src/GsfMeasurementUpdator.cxx

added Egamma Tracking main review-pending-level-1 labels

CI Result SUCCESS (hash 6eb44939)

	Athena
externals
cmake
make
tests

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Athena: number of compilation errors 0, warnings 0
For experts only: Jenkins output [CI-MERGE-REQUEST-EL9 9075] (remote access info)

MR looks fine from L1 perspective, CI shows no problems - approving

Cheers, Qiyu, L1

removed review-pending-level-1 label

added review-approved label

mentioned in commit c0ed6bd1

merged