fix: Fixed STIX objects parsing to avoid errors with not parsable objects
fix: Fixed STIX objects parsing to avoid errors with not parsable objects

FIRSTdotorg/MISP,MISP/MISP,FloatingGhost/MISP,Rafiot/MISP,TheDr1ver/MISP,devnull-/MISP,SteveClement/MISP,FIRSTdotorg/MISP,Rafiot/MISP,SteveClement/MISP,FloatingGhost/MISP,SteveClement/MISP,TheDr1ver/MISP,SteveClement/MISP,SteveClement/MISP,devnull-/MISP,devnull-/MISP,TheDr1ver/MISP,FloatingGhost/MISP,FloatingGhost/MISP,Rafiot/MISP,MISP/MISP,FIRSTdotorg/MISP,MISP/MISP,FIRSTdotorg/MISP,MISP/MISP,devnull-/MISP,Rafiot/MISP,TheDr1ver/MISP,MISP/MISP