fix: [stix2 import] Fixed network socket pattern values parsing
fix: [stix2 import] Fixed network socket pattern values parsing

- We do not want to import the single quotes that
  are all around the pattern values

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