Fix irreproducible TRT DQ histograms

The TRT monitoring code had a cut variable that took uninitialized values, so produced different histograms in every nightly test. This variable is now initialized.

Attn @nbelyaev

This merge request affects 1 package:

• InnerDetector/InDetMonitoring/TRTMonitoringRun3

Adding @cgrefe ,@calfayan ,@sroe ,@goetz as watchers

added InnerDetector master review-pending-level-1 labels

Oh, many thanks, Peter!

CI Result SUCCESS (hash eb3c82d2)

	Athena	AthSimulation
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
For experts only: Jenkins output [CI-MERGE-REQUEST-CC7 6416]

The MRs look fine, approving. Pienpen (L1)

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

merged

mentioned in commit 146ed192

added sweep:ignore label