fix: [stix2 import] Fixed external domain & x509 patterns import
fix: [stix2 import] Fixed external domain & x509 patterns import

FIRSTdotorg/MISP,SteveClement/MISP,MISP/MISP,SteveClement/MISP,MISP/MISP,MISP/MISP,SteveClement/MISP,MISP/MISP,SteveClement/MISP,FIRSTdotorg/MISP,FIRSTdotorg/MISP,SteveClement/MISP,MISP/MISP,FIRSTdotorg/MISP