21.9: new volume debugger options

Updating preInclude.VolumeDebugger.py to allow the volume checked to be set based on environment variables. The motivation is that in ITKLayouts CI pipelines, a check can be performed on which files have changed, and use this to decide whether to run the volume debugger on only pixel, only strips, or both.

Adding also a new option to RunUpgradeTests.py to include the VolumeDebugger for the appropriate test configuration.

FYI @ncalace @tstreble @hhayward @tlari

This merge request affects 2 files:

• InnerDetector/InDetExample/InDetSLHC_Example/share/preInclude.VolumeDebugger.py
• Tools/PROCTools/python/RunUpgradeTests.py

Adding @goetz ,@sroe ,@amete as watchers

added 21.9 InnerDetector Tools review-pending-level-1 labels

CI Result SUCCESS (hash e9c9fd55)

	Athena
externals
cmake
make
required tests
optional tests

Full details available on this CI monitor view
Athena: number of compilation errors 0, warnings 0
For experts only: Jenkins output [CI-MERGE-REQUEST-CC7 45192]

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

merged

mentioned in commit a9106ca3

added sweep:ignore label