databases/cego: update 2.38.0 -> 2.38.1

• Fix in CegoPredDesc::decode, loop variable i for IN/NOTIN case was not initialized
• Fix in CegoAction::execCheckCreate, check contraints are checked for contained subselects. subselects are ( still ) not supported since the CegoCheckOject::decode method can not provide a valid tablemanager instance ( it is called from CegoObjectManager )

Submitted by: Bjoern Lemke <lemke@lemke-it.com>