Merge branch 'IOVDbSvcCfg_Cache' into 'master'

Improve cachability of ComponentAccumulator returned by IOVDbSvcCfg

See merge request !58206

(cherry picked from commit 2d0130e6)

523e9b43 AccumulatorCache: Improve debug output
4f5ec717 slightly refactor IOVDbSvcCfg to improve cachability
f169cfe5 TriggerJobOpts/Modifiers.py: Lock flag container before calling CAtoGlobalWrapper
0d748df5 append folder list