chg: use new bg jobs tool in AttachmentScan
chg: use new bg jobs tool in AttachmentScan

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