fix: [stix1 import] Fixed uuid fetching when a STIX object has no id
fix: [stix1 import] Fixed uuid fetching when a STIX object has no id

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