fix: STIX2 export is no more experimental and can be safely used
fix: STIX2 export is no more experimental and can be safely used

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