databases/cego: update 2.39.13 -> 2.39.14

• Fix in CegoXPorter::writeRow and CegoXPorter::readRow for binary export and import of tables containing lob null values. lob null values must be identified by colLen unsigned long long = 0 instead of integer = 0

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