Merge branch 'coverity' into 'master'

Fixed coverity issues:

* KeyedObjectManager.cpp
  * 64154: Iterator container mismatch
  * 64281: Invalid iterator comparison
* ProcessDescriptor.cpp
  * 64293: Out-of-bounds write
* AvalancheSchedulerSvc.cpp
  * 94135: Dereference after null check
  * 94134: Dereference after null check
  * 94669: Unchecked dynamic_cast
* HiveTestAlgorithm.cpp
  * 82289: Unchecked dynamic_cast

See merge request !357