[OPENENGSB-2530,OPENENGSB-2531] Upgrade exam (2.3.0) and labs-paxexam-karaf (0.5.0)
[OPENENGSB-2530,OPENENGSB-2531] Upgrade exam (2.3.0) and labs-paxexam-karaf (0.5.0)

Signed-off-by: Andreas Pieber <57efbcbb22ec0bd89955a40df26b44c340d3e38d@gmail.com>
(cherry picked from commit bd6b99917f6da31d231fd4c919989f4901ff5dd0)

Signed-off-by: Andreas Pieber <57efbcbb22ec0bd89955a40df26b44c340d3e38d@gmail.com>

openengsb/openengsb,openengsb/openengsb,openengsb/openengsb,openengsb/openengsb,openengsb/openengsb,openengsb/openengsb