ActsGeometry: patched the broken compilation in debug nightlies

The compilation problems caused by !73976 (merged)

@goetz, this quick and dirty patch fixes the compilation problems in debug nightlies. Please feel free to close this MR and replace it with a real fix. If that takes some time, we can temporarily merge this one. Thanks

This merge request affects 1 package:

• Tracking/Acts/ActsGeometry

This merge request affects 2 files:

• Tracking/Acts/ActsGeometry/ActsGeometry/DetectorElementToActsGeometryIdMap.h
• Tracking/Acts/ActsGeometry/src/DetectorElementToActsGeometryIdMappingAlg.cxx

Adding @cvarni ,@jojungge ,@tbold ,@pagessin ,@toyamaza as watchers

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

CI Result SUCCESS (hash 6a808965)

	Athena
externals
cmake
make
tests

Full details available on this CI monitor view. Check the JIRA CI status board for known problems
Athena: number of compilation errors 0, warnings 0
For experts only: Jenkins output [CI-MERGE-REQUEST-EL9 15247] (remote access info)

Escalting to L2, needs decision if this should be merged.

-L1

removed review-pending-level-1 label

added review-pending-level-2 label

resolved all threads

Code changes look good, moving this to review-pending-expert to leave a chance for @goetz to comment

added review-pending-expert label and removed review-pending-level-2 label

The proper fix is available in !74122 (merged). Thanks @goetz

closed