FIX wrong INFO startup log showing ORION_MONGO_TIMEOUT, ORION_IN_REQ_PAYLOAD_MAX_SIZE and ORION_OUT_REQ_MSG_MAX_SIZE env var values

[fgalan]

Solves the problem reported at #4496 (comment)

Probably there are more times apart from PaULong to take into account. The new error trace in the else branch would help to detect them in the future.

Some traces:

$ ORION_MONGO_URI=mongodb://localhost:27017 ORION_MONGO_TIMEOUT=0 contextBroker -fg -logLevel INFO -logForHumans
INFO@2024-02-06T08:37:58.151Z  contextBroker.cpp[1110]: start command line <contextBroker -fg -logLevel INFO -logForHumans>
INFO@2024-02-06T08:37:58.151Z  contextBroker.cpp[972]: env var ORION_MONGO_URI (-dbURI): mongodb://localhost:27017
INFO@2024-02-06T08:37:58.151Z  contextBroker.cpp[984]: env var ORION_MONGO_TIMEOUT (-dbTimeout): 0
INFO@2024-02-06T08:37:58.151Z  contextBroker.cpp[1184]: Orion Context Broker is running
INFO@2024-02-06T08:37:58.167Z  mongoConnectionPool.cpp[536]: Connected to mongodb://localhost:27017 (dbName: orion, poolsize: 10)
INFO@2024-02-06T08:37:58.168Z  contextBroker.cpp[1324]: Startup completed

$ ORION_MONGO_TIMEOUT=500 contextBroker -fg -logLevel INFO -logForHumans
INFO@2024-02-06T08:38:06.289Z  contextBroker.cpp[1110]: start command line <contextBroker -fg -logLevel INFO -logForHumans>
INFO@2024-02-06T08:38:06.289Z  contextBroker.cpp[984]: env var ORION_MONGO_TIMEOUT (-dbTimeout): 500
INFO@2024-02-06T08:38:06.289Z  contextBroker.cpp[1184]: Orion Context Broker is running
INFO@2024-02-06T08:38:06.306Z  mongoConnectionPool.cpp[536]: Connected to mongodb://localhost/?connectTimeoutMS=500 (dbName: orion, poolsize: 10)
INFO@2024-02-06T08:38:06.307Z  contextBroker.cpp[1324]: Startup completed

CC: @goten002

[mapedraza]

LGTM