LAr DT mon fixes, addressing https://its.cern.ch/jira/browse/ATLASRECTS-7976

Ellis Kayrequested to merge
ekay/athena:LArDTMonFixes_2 into 24.0

Following https://its.cern.ch/jira/browse/ATLASRECTS-7976 We still have issues with attempts to access indices of vectors which do not exist.

Merge request reports