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